CVE-2017-12941
CVE-2017-12941 is a critical-severity vulnerability in Rarlab Unrar with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 2% (80th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Rarlab Unrar
- Published:
- Last modified:
Description
libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the Unpack::Unpack20 function.
Frequently asked questions
- What is CVE-2017-12941?
- libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the Unpack::Unpack20 function.
- How severe is CVE-2017-12941?
- CVE-2017-12941 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2017-12941 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2017-12941?
- CVE-2017-12941 affects Rarlab Unrar. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2017-12941?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2017-12941 published?
- CVE-2017-12941 was published on 2017-08-18 and last updated on 2026-06-17.
References
- http://seclists.org/oss-sec/2017/q3/290
- https://kc.mcafee.com/corporate/index?page=content&id=SB10241
- https://security.gentoo.org/glsa/201709-24
Affected products (1)
- cpe:2.3:a:rarlab:unrar:*:*:*:*:*:*:*:*
More vulnerabilities in Rarlab Unrar
- CVE-2017-12942 — Critical (CVSS 9.8): libunrar.a in UnRAR before 5.5.7 has a buffer overflow in the Unpack::LongLZ function.
- CVE-2017-12940 — Critical (CVSS 9.8): libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the EncodeFileName::Decode call within the…
- CVE-2012-6706 — Critical (CVSS 9.8): A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection…
- CVE-2017-14122 — Critical (CVSS 9.1): unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a stack-based buffer over-read in unrarlib.c, related to…
- CVE-2018-25018 — High (CVSS 7.8): UnRAR 5.6.1.7 through 5.7.4 and 6.0.3 has an out-of-bounds write during a memcpy in QuickOpen::ReadRaw when called from…
- CVE-2017-20006 — High (CVSS 7.8): UnRAR 5.6.1.2 and 5.6.1.3 has a heap-based buffer overflow in Unpack::CopyString (called from Unpack::Unpack5 and…
All CVEs affecting Rarlab Unrar →
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