Every CVE Search/ Get API key

CVE-2025-8746

GNU libopts __strstr_sse2 memory corruption

4.8 MediumFix available

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.24%Up 0.2 points since Aug 9, 2025
90%50%10%1%

What each source reports

CVE List Score used 4.8

GNU libopts __strstr_sse2 memory corruption

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.

Record
CVE-2025-8746
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
CVSS 3.0
3.3 LowCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
CVSS 2.0
1.7 AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR
Weakness
CWE-119
Updated
2026-11-02
EUVDEUVD-2025-24045 4.8

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.

Record
EUVD-2025-24045
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Updated
2026-11-02
GitHub AdvisoriesGHSA-4cc6-crfh-q58w 1.9

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6....

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.

Record
GHSA-4cc6-crfh-q58w
CVSS 4.0
1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-119, CWE-787
Updated
2026-11-02
NVD 1.9

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.

Record
CVE-2025-8746
CVSS 4.0
1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
1.7 LowAV:L/AC:L/Au:S/C:N/I:N/A:P
Weakness
CWE-119, CWE-787
Updated
2026-11-02
OSV 5.5

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.

Record
CVE-2025-8746
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2025-8746 5.5

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.

Record
DEBIAN-CVE-2025-8746
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 12 moreShow less
OSVOESA-2026-1254 5.5

autogen security update

AutoGen is a tool designed to simplify the creation and maintenance of programs that contain large amounts of repetitious text. It is especially valuable in programs that have several blocks of text that must be kept synchronised.

Security Fix(es):

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.(CVE-2025-8746)

Record
OESA-2026-1254
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2026-1255 5.5

autogen security update

AutoGen is a tool designed to simplify the creation and maintenance of programs that contain large amounts of repetitious text. It is especially valuable in programs that have several blocks of text that must be kept synchronised.

Security Fix(es):

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.(CVE-2025-8746)

Record
OESA-2026-1255
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2026-1256 5.5

autogen security update

AutoGen is a tool designed to simplify the creation and maintenance of programs that contain large amounts of repetitious text. It is especially valuable in programs that have several blocks of text that must be kept synchronised.

Security Fix(es):

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.(CVE-2025-8746)

Record
OESA-2026-1256
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2026-1317 5.5

autogen security update

AutoGen is a tool designed to simplify the creation and maintenance of programs that contain large amounts of repetitious text. It is especially valuable in programs that have several blocks of text that must be kept synchronised.

Security Fix(es):

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.(CVE-2025-8746)

Record
OESA-2026-1317
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2026-1318 5.5

autogen security update

AutoGen is a tool designed to simplify the creation and maintenance of programs that contain large amounts of repetitious text. It is especially valuable in programs that have several blocks of text that must be kept synchronised.

Security Fix(es):

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.(CVE-2025-8746)

Record
OESA-2026-1318
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVOESA-2026-1424 5.5

autogen security update

AutoGen is a tool designed to simplify the creation and maintenance of programs that contain large amounts of repetitious text. It is especially valuable in programs that have several blocks of text that must be kept synchronised.

Security Fix(es):

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.(CVE-2025-8746)

Record
OESA-2026-1424
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2025-8746 1.9

A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.

Record
UBUNTU-CVE-2025-8746
CVSS 4.0
1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVopenSUSE-SU-2025:15557-1 No score

autogen-5.18.16-8.1 on GA media

These are all security issues fixed in the autogen-5.18.16-8.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15557-1
Updated
2026-11-02
OSVopenSUSE-SU-2025:15570-1 No score

tcpreplay-4.5.1-2.1 on GA media

These are all security issues fixed in the tcpreplay-4.5.1-2.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15570-1
Updated
2026-11-02
OSVopenSUSE-SU-2025:20119-1 No score

Security update for tcpreplay

This update for tcpreplay fixes the following issues:

  • update to 4.5.2:
    • features added since 4.4.4
      • fix/recalculate header checksum for ipv6-frag
      • IPv6 frag checksum support
      • AF_XDP socket support
      • tcpreplay -w (write into a pcap file)
      • tcpreplay --fixhdrlen
      • --include and --exclude options
      • SLL2 support
      • Haiku support
    • security fixes reported for 4.4.4 fixed in 4.5.2
      • CVE-2023-4256 / bsc#1218249
      • CVE-2023-43279 / bsc#1221324
      • CVE-2024-3024 / bsc#1222131 (likely)
      • CVE-2024-22654 / bsc#1243845
      • CVE-2025-9157 / bsc#1248322
      • CVE-2025-9384 / bsc#1248595
      • CVE-2025-9385 / bsc#1248596
      • CVE-2025-9386 / bsc#1248597
      • CVE-2025-9649 / bsc#1248964
      • CVE-2025-51006 / bsc#1250356
Record
openSUSE-SU-2025:20119-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:20270-1 No score

Security update for autogen

This update for autogen fixes the following issues:

  • CVE-2025-8746: Fixed improper input validation and memory bounds checking when processing certain malformed configuration files (bsc#1247921)
Record
openSUSE-SU-2026:20270-1
Updated
2026-11-02
OSVSUSE-SU-2026:20590-1 No score

Security update for autogen

This update for autogen fixes the following issues:

  • CVE-2025-8746: Fixed improper input validation and memory bounds checking when processing certain malformed configuration files (bsc#1247921)
Record
SUSE-SU-2026:20590-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
autogen
Debian:12
 All versions, plus listed versions
1:5.18.16-51:5.18.16-5.11:5.18.16-61:5.18.16-71:5.18.16-8
Show 4 moreShow less
1:5.18.16-91:5.19.96-11:5.19.96-21:5.19.96-3
 None known
autogen
Debian:13
 All versions, plus listed versions
1:5.18.16-71:5.18.16-81:5.18.16-91:5.19.96-11:5.19.96-21:5.19.96-3
 None known
autogen
Debian:14
 before 1:5.18.16-8, plus listed versions
1:5.18.16-7
1:5.18.16-8
autogen
openEuler:20.03-LTS-SP4
 before 5.18.16-4.oe2003sp4
5.18.16-4.oe2003sp4
autogen
openEuler:24.03-LTS-SP1
 before 5.18.16-6.oe2403sp1
5.18.16-6.oe2403sp1
autogen
openEuler:24.03-LTS-SP3
 before 5.18.16-6.oe2403sp3
5.18.16-6.oe2403sp3
autogen
openEuler:24.03-LTS
 before 5.18.16-6.oe2403
5.18.16-6.oe2403
autogen
openEuler:24.03-LTS-SP2
 before 5.18.16-6.oe2403sp2
5.18.16-6.oe2403sp2
autogen
openEuler:22.03-LTS-SP4
 before 5.18.16-5.oe2203sp4
5.18.16-5.oe2203sp4
autogen
SUSE:Linux Enterprise Server 16.0
 before 5.18.16-160000.3.1
5.18.16-160000.3.1
Show 14 moreShow less
Affected packages
PackageAffectedFixed
autogen
SUSE:Linux Enterprise Server for SAP applications 16.0
 before 5.18.16-160000.3.1
5.18.16-160000.3.1
autogen
Ubuntu:14.04:LTS
 All versions, plus listed versions
1:5.18-2ubuntu11:5.18-2ubuntu2
 None known
autogen
Ubuntu:16.04:LTS
 All versions, plus listed versions
1:5.18.6~pre3-31:5.18.6-41:5.18.7-21:5.18.7-3
 None known
autogen
Ubuntu:18.04:LTS
 All versions, plus listed versions
1:5.18.12-31:5.18.12-4
 None known
autogen
Ubuntu:20.04:LTS
 All versions, plus listed versions
1:5.18.12-4build11:5.18.16-3
 None known
autogen
Ubuntu:22.04:LTS
 All versions, plus listed versions
1:5.18.16-4
 None known
autogen
Ubuntu:24.04:LTS
 All versions, plus listed versions
1:5.18.16-51:5.18.16-5build1
 None known
autogen
Ubuntu:25.10
 All versions, plus listed versions
1:5.18.16-5build11:5.18.16-5.11:5.18.16-61:5.18.16-71:5.18.16-7build1
 None known
autogen
Ubuntu:26.10
 All versions, plus listed versions
1:5.18.16-7build21:5.18.16-81:5.18.16-9
 None known
autogen
Ubuntu:26.04:LTS
 All versions, plus listed versions
1:5.18.16-7build11:5.18.16-7build2
 None known
autogen
openSUSE:Tumbleweed
 before 5.18.16-8.1
5.18.16-8.1
tcpreplay
openSUSE:Tumbleweed
 before 4.5.1-2.1
4.5.1-2.1
tcpreplay
openSUSE:Leap 16.0
From an advisory covering 11 CVEs
 before 4.5.2-bp160.1.1
4.5.2-bp160.1.1
autogen
openSUSE:Leap 16.0
 before 5.18.16-160000.3.1
5.18.16-160000.3.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-8746 is a medium vulnerability (CVSS 4.8) in Gnu Libopts, published August 9, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 15th percentile. Fixed in autogen 1:5.18.16-8.

References

Show 35 moreShow less
Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open