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CVE-2022-26125

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input...

7.8 HighFix available

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isis_tlvs.c.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.00%Up 0.1 points since Mar 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.8

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isis_tlvs.c.

Record
CVE-2022-26125
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-119, CWE-1284
Updated
2026-11-02
CVE List 7.5

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isis_tlvs.c.

Record
CVE-2022-26125
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-119
Updated
2026-11-02
EUVDEUVD-2022-30692 7.5

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isis_tlvs.c.

Record
EUVD-2022-30692
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-9hg8-8wq3-mhhg 7.8

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input...

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isis_tlvs.c.

Record
GHSA-9hg8-8wq3-mhhg
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-119, CWE-1284
Updated
2026-11-02
OSVALPINE-CVE-2022-26125 7.8

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isis_tlvs.c.

Record
ALPINE-CVE-2022-26125
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSV 7.5

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isis_tlvs.c.

Record
CVE-2022-26125
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-119
Updated
2026-11-02
Show 8 moreShow less
OSVDEBIAN-CVE-2022-26125 7.8

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isis_tlvs.c.

Record
DEBIAN-CVE-2022-26125
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSVRHSA-2022:8112 7.8

Red Hat Security Advisory: frr security, bug fix, and enhancement update

Record
RHSA-2022:8112
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRLSA-2022:8112 7.8

Moderate: frr security, bug fix, and enhancement update

FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP and BFD.

The following packages have been upgraded to a later upstream version: frr (8.2.2). (BZ#2069563)

Security Fix(es):

  • frrouting: overflow bugs in unpack_tlv_router_cap (CVE-2022-26125)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 9.1 Release Notes linked from the References section.

Record
RLSA-2022:8112
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2022-26125 7.8

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to wrong checks on the input packet length in isisd/isis_tlvs.c.

Record
UBUNTU-CVE-2022-26125
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVALSA-2022:8112 No score

Moderate: frr security, bug fix, and enhancement update

FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP and BFD.

The following packages have been upgraded to a later upstream version: frr (8.2.2). (BZ#2069563)

Security Fix(es):

  • frrouting: overflow bugs in unpack_tlv_router_cap (CVE-2022-26125)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

Record
ALSA-2022:8112
Updated
2026-11-02
OSVopenSUSE-SU-2022:0901-1 No score

Security update for frr

This update for frr fixes the following issues:

  • CVE-2022-26125, CVE-2022-26126: Fixed buffer overflows in unpack_tlv_router_cap() (bsc#1196505, bsc#1196506).
  • CVE-2022-26127: Fixed heap buffer overflow in babel_packet_examin() (bsc#1196503).
  • CVE-2022-26128: Fixed buffer overflows in babel_packet_examin() (bsc#1196507).
  • CVE-2022-26129: Fixed buffer overflows in parse_hello_subtlv(), parse_ihu_subtlv() and parse_update_subtlv() (bsc#1196504).
Record
openSUSE-SU-2022:0901-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:11880-1 No score

frr-8.1-3.1 on GA media

These are all security issues fixed in the frr-8.1-3.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11880-1
Updated
2026-11-02
OSVSUSE-SU-2022:0901-1 No score

Security update for frr

This update for frr fixes the following issues:

  • CVE-2022-26125, CVE-2022-26126: Fixed buffer overflows in unpack_tlv_router_cap() (bsc#1196505, bsc#1196506).
  • CVE-2022-26127: Fixed heap buffer overflow in babel_packet_examin() (bsc#1196503).
  • CVE-2022-26128: Fixed buffer overflows in babel_packet_examin() (bsc#1196507).
  • CVE-2022-26129: Fixed buffer overflows in parse_hello_subtlv(), parse_ihu_subtlv() and parse_update_subtlv() (bsc#1196504).
Record
SUSE-SU-2022:0901-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
frr
Alpine:v3.16
 before 8.2.1-r0
8.2.1-r0
frr
Alpine:v3.17
 before 8.2.1-r0
8.2.1-r0
frr
Alpine:v3.18
 before 8.2.1-r0
8.2.1-r0
frr
Alpine:v3.19
 before 8.2.1-r0
8.2.1-r0
frr
Alpine:v3.20
 before 8.2.1-r0
8.2.1-r0
frr
Alpine:v3.21
 before 8.2.1-r0
8.2.1-r0
frr
Alpine:v3.22
 before 8.2.1-r0
8.2.1-r0
frr
Alpine:v3.23
 before 8.2.1-r0
8.2.1-r0
frr
Alpine:v3.24
 before 8.2.1-r0
8.2.1-r0
frr
AlmaLinux:9
 before 8.2.2-4.el9
8.2.2-4.el9
Show 13 moreShow less
Affected packages
PackageAffectedFixed
frr
Debian:12
 before 8.4.1-1
8.4.1-1
frr
Debian:13
 before 8.4.1-1
8.4.1-1
frr
Debian:14
 before 8.4.1-1
8.4.1-1
frr
Debian:10
 before 7.5.1-1.1+deb10u2, plus listed versions
6.0.2-26.0.2-2+deb10u16.0.2-2+deb10u27.2-17.2.1-1
Show 8 moreShow less
7.3.1-17.4-17.4-1.17.4-27.5-17.5.1-17.5.1-1.17.5.1-1.1+deb10u1
7.5.1-1.1+deb10u2
frr
Debian:11
 before 7.5.1-1.1+deb11u3, plus listed versions
7.5.1-1.17.5.1-1.1+deb11u17.5.1-1.1+deb11u2
7.5.1-1.1+deb11u3
frr
Red Hat:enterprise_linux:9::appstream
 before 0:8.2.2-4.el9
0:8.2.2-4.el9
frr-debuginfo
Red Hat:enterprise_linux:9::appstream
 before 0:8.2.2-4.el9
0:8.2.2-4.el9
frr-debugsource
Red Hat:enterprise_linux:9::appstream
 before 0:8.2.2-4.el9
0:8.2.2-4.el9
frr
Rocky Linux:9
 before 0:8.2.2-4.el9
0:8.2.2-4.el9
frr
SUSE:Linux Enterprise Module for Server Applications 15 SP3
 before 7.4-150300.4.3.1
7.4-150300.4.3.1
frr
Ubuntu:22.04:LTS
 before 8.1-1ubuntu1, plus listed versions
7.5.1-1.18.1-1
8.1-1ubuntu1
frr
openSUSE:Leap 15.3
 before 7.4-150300.4.3.1
7.4-150300.4.3.1
frr
openSUSE:Tumbleweed
 before 8.1-3.1
8.1-3.1

History

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

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

In short

CVE-2022-26125 is a high vulnerability (CVSS 7.8) in Frrouting, published March 3, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.00%, the 62nd percentile. Fixed in frr 8.2.1-r0.

References

Show 29 moreShow less
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