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CVE-2023-52169

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read...

8.2 HighFix available

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read that allows an attacker to read beyond the intended buffer. The bytes read beyond the intended buffer are presented as a part of a filename listed in the file system image. This has security relevance in some known web-service use cases where untrusted users can upload files and have them extracted by a server-side 7-Zip process.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
High

Exploit likelihood

0.98%Up 0.9 points since Jul 4, 2024
90%50%10%1%

What each source reports

CVE List Score used 8.2

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read that allows an attacker to read beyond the intended buffer. The bytes read beyond the intended buffer are presented as a part of a filename listed in the file system image. This has security relevance in some known web-service use cases where untrusted users can upload files and have them extracted by a server-side 7-Zip process.

Record
CVE-2023-52169
CVSS 3.1
8.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
EUVDEUVD-2023-56842 8.2

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read that allows an attacker to read beyond the intended buffer. The bytes read beyond the intended buffer are presented as a part of a filename listed in the file system image. This has security relevance in some known web-service use cases where untrusted users can upload files and have them extracted by a server-side 7-Zip process.

Record
EUVD-2023-56842
CVSS 3.1
8.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-g8p4-4qgr-rf4f 8.2

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read...

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read that allows an attacker to read beyond the intended buffer. The bytes read beyond the intended buffer are presented as a part of a filename listed in the file system image. This has security relevance in some known web-service use cases where untrusted users can upload files and have them extracted by a server-side 7-Zip process.

Record
GHSA-g8p4-4qgr-rf4f
CVSS 3.1
8.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
NVD 8.2

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read that allows an attacker to read beyond the intended buffer. The bytes read beyond the intended buffer are presented as a part of a filename listed in the file system image. This has security relevance in some known web-service use cases where untrusted users can upload files and have them extracted by a server-side 7-Zip process.

Record
CVE-2023-52169
CVSS 3.1
8.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
OSVDEBIAN-CVE-2023-52169 8.2

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read that allows an attacker to read beyond the intended buffer. The bytes read beyond the intended buffer are presented as a part of a filename listed in the file system image. This has security relevance in some known web-service use cases where untrusted users can upload files and have them extracted by a server-side 7-Zip process.

Record
DEBIAN-CVE-2023-52169
CVSS 3.1
8.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Updated
2026-11-02
OSVOESA-2025-1748 8.4

p7zip security update

7za for Linux system to archive file as 7z file format

Security Fix(es):

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains a heap-based buffer overflow that allows an attacker to overwrite two bytes at multiple offsets beyond the allocated buffer size: buffer+512*i-2, for i=9, i=10, i=11, etc.(CVE-2023-52168)

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read that allows an attacker to read beyond the intended buffer. The bytes read beyond the intended buffer are presented as a part of a filename listed in the file system image. This has security relevance in some known web-service use cases where untrusted users can upload files and have them extracted by a server-side 7-Zip process.(CVE-2023-52169)

Record
OESA-2025-1748
CVSS 3.1
8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 5 moreShow less
OSVUBUNTU-CVE-2023-52169 8.2

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read that allows an attacker to read beyond the intended buffer. The bytes read beyond the intended buffer are presented as a part of a filename listed in the file system image. This has security relevance in some known web-service use cases where untrusted users can upload files and have them extracted by a server-side 7-Zip process.

Record
UBUNTU-CVE-2023-52169
CVSS 3.1
8.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Updated
2026-11-02
OSV No score

The NtfsHandler.cpp NTFS handler in 7-Zip before 24.01 (for 7zz) contains an out-of-bounds read that allows an attacker to read beyond the intended buffer. The bytes read beyond the intended buffer are presented as a part of a filename listed in the file system image. This has security relevance in some known web-service use cases where untrusted users can upload files and have them extracted by a server-side 7-Zip process.

Record
CVE-2023-52169
Updated
2026-11-02
OSVSUSE-SU-2024:2475-1 No score

Security update for p7zip

This update for p7zip fixes the following issues:

  • CVE-2023-52168: Fixed heap-based buffer overflow in the NTFS handler allows two bytes to be overwritten at multiple offsets (bsc#1227358)
  • CVE-2023-52169: Fixed out-of-bounds read in NTFS handler (bsc#1227359)
Record
SUSE-SU-2024:2475-1
Updated
2026-11-02
OSVSUSE-SU-2024:2625-1 No score

Security update for p7zip

This update for p7zip fixes the following issues:

  • CVE-2023-52168: Fixed heap-based buffer overflow in the NTFS handler allows two bytes to be overwritten at multiple offsets (bsc#1227358)
  • CVE-2023-52169: Fixed out-of-bounds read in NTFS handler (bsc#1227359)
Record
SUSE-SU-2024:2625-1
Updated
2026-11-02
OSVUSN-7438-1 No score

7zip vulnerabilities

Igor Pavlov discovered that 7-Zip had several memory-related issues. An attacker could possibly use these issues to cause 7-Zip to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2023-52168, CVE-2023-52169)

Record
USN-7438-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
7zip
Debian:12
before 22.01+dfsg-8+deb12u1, plus listed versions
22.01+dfsg-8
22.01+dfsg-8+deb12u1
7zip
Debian:13
before 24.05+dfsg-1
24.05+dfsg-1
7zip
Debian:14
before 24.05+dfsg-1
24.05+dfsg-1
p7zip
Debian:12
before 16.02+really25.01+dfsg-0+deb12u1, plus listed versions
16.02+dfsg-8
16.02+really25.01+dfsg-0+deb12u1
p7zip
Debian:13
before 16.02+transitional.1
16.02+transitional.1
p7zip
openEuler:24.03-LTS-SP2
From an advisory covering 2 CVEs
before 16.02-8.oe2403sp2
16.02-8.oe2403sp2
p7zip
openEuler:20.03-LTS-SP4
From an advisory covering 2 CVEs
before 16.02-7.oe2003sp4
16.02-7.oe2003sp4
p7zip
openEuler:22.03-LTS-SP3
From an advisory covering 2 CVEs
before 16.02-7.oe2203sp3
16.02-7.oe2203sp3
p7zip
openEuler:22.03-LTS-SP4
From an advisory covering 2 CVEs
before 16.02-7.oe2203sp4
16.02-7.oe2203sp4
p7zip
openEuler:24.03-LTS
From an advisory covering 2 CVEs
before 16.02-8.oe2403sp1
16.02-8.oe2403sp1
Show 24 moreShow less
Affected packages
PackageAffectedFixed
p7zip
openEuler:24.03-LTS-SP1
From an advisory covering 2 CVEs
before 16.02-8.oe2403sp1
16.02-8.oe2403sp1
p7zip
SUSE:Linux Enterprise Server 12 SP5
From an advisory covering 2 CVEs
before 9.20.1-7.6.1
9.20.1-7.6.1
p7zip
SUSE:Linux Enterprise Server for SAP Applications 12 SP5
From an advisory covering 2 CVEs
before 9.20.1-7.6.1
9.20.1-7.6.1
p7zip
SUSE:Linux Enterprise Module for Basesystem 15 SP5
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise Module for Basesystem 15 SP6
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise Server 15 SP2-LTSS
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise Server 15 SP3-LTSS
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise Server for SAP Applications 15 SP2
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise Server for SAP Applications 15 SP3
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Manager Proxy 4.3
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Manager Server 4.3
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
SUSE:Enterprise Storage 7.1
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
openSUSE:Leap 15.5
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
p7zip
openSUSE:Leap 15.6
From an advisory covering 2 CVEs
before 16.02-150200.14.12.1
16.02-150200.14.12.1
7zip
Ubuntu:Pro:22.04:LTS
before 21.07+dfsg-4ubuntu0.1~esm1, plus listed versions
21.03~beta+dfsg-621.04~beta+dfsg-121.06+dfsg-121.07+dfsg-121.07+dfsg-221.07+dfsg-321.07+dfsg-4
21.07+dfsg-4ubuntu0.1~esm1
7zip
Ubuntu:Pro:24.04:LTS
before 23.01+dfsg-11ubuntu0.1~esm1, plus listed versions
23.01+dfsg-323.01+dfsg-723.01+dfsg-823.01+dfsg-11
23.01+dfsg-11ubuntu0.1~esm1
7zip
Ubuntu:Pro:22.04:LTS
From an advisory covering 2 CVEs
before 21.07+dfsg-4ubuntu0.1~esm1, plus listed versions
21.03~beta+dfsg-621.04~beta+dfsg-121.06+dfsg-121.07+dfsg-121.07+dfsg-221.07+dfsg-321.07+dfsg-4
21.07+dfsg-4ubuntu0.1~esm1
7zip
Ubuntu:Pro:24.04:LTS
From an advisory covering 2 CVEs
before 23.01+dfsg-11ubuntu0.1~esm1, plus listed versions
23.01+dfsg-323.01+dfsg-723.01+dfsg-823.01+dfsg-11
23.01+dfsg-11ubuntu0.1~esm1

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-2023-52169 is a high vulnerability (CVSS 8.2) in 7-zip, published July 3, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.98%, the 62nd percentile. Fixed in 7zip 22.01+dfsg-8+deb12u1.

References

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