CVE-2023-52169
CVE-2023-52169 is a high-severity vulnerability with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: High (CVSS 3.x base score 8.2)
- EPSS exploit prediction: 1% (58th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2023-56842
- Weakness: CWE-125
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2023-52169?
- 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.
- How severe is CVE-2023-52169?
- CVE-2023-52169 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability high.
- Is CVE-2023-52169 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2023-52169?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2023-52169 have an EU (EUVD) identifier?
- Yes. CVE-2023-52169 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56842.
- When was CVE-2023-52169 published?
- CVE-2023-52169 was published on 2024-07-03 and last updated on 2026-06-17.
References
- http://www.openwall.com/lists/oss-security/2024/07/03/10
- https://dfir.ru/2024/06/19/vulnerabilities-in-7-zip-and-ntfs3/
- https://sourceforge.net/p/sevenzip/bugs/2402/
- https://www.openwall.com/lists/oss-security/2024/07/03/10
- https://security.netapp.com/advisory/ntap-20241122-0011/
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