CVE-2020-11866
CVE-2020-11866 is a high-severity vulnerability in Libemf Project Libemf with a CVSS 3.x base score of 7.8. 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-416.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (67th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Libemf Project Libemf
- Published:
- Last modified:
Description
libEMF (aka ECMA-234 Metafile Library) through 1.0.11 allows a use-after-free.
Frequently asked questions
- What is CVE-2020-11866?
- libEMF (aka ECMA-234 Metafile Library) through 1.0.11 allows a use-after-free.
- How severe is CVE-2020-11866?
- CVE-2020-11866 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-11866 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-11866?
- CVE-2020-11866 primarily affects Libemf Project Libemf. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-11866?
- 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.
- When was CVE-2020-11866 published?
- CVE-2020-11866 was published on 2020-05-11 and last updated on 2026-06-17.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00036.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DFYDSKWFM2R5NKZOO2IN6X7SM3T2PWL/
- https://sourceforge.net/p/libemf/code/commit_browser
- https://sourceforge.net/p/libemf/mailman/libemf-devel/
- https://sourceforge.net/p/libemf/news/2020/05/re-release-of-libemf-1012/
Affected products (3)
- cpe:2.3:a:libemf_project:libemf:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
More vulnerabilities in Libemf Project Libemf
- CVE-2020-11865 — High (CVSS 7.8): libEMF (aka ECMA-234 Metafile Library) through 1.0.11 allows out-of-bounds memory access.
- CVE-2020-13999 — Medium (CVSS 5.5): ScaleViewPortExtEx in libemf.cpp in libEMF (aka ECMA-234 Metafile Library) 1.0.12 allows an integer overflow and denial…
- CVE-2020-11864 — Medium (CVSS 5.5): libEMF (aka ECMA-234 Metafile Library) through 1.0.11 allows denial of service (issue 2 of 2).
- CVE-2020-11863 — Medium (CVSS 5.5): libEMF (aka ECMA-234 Metafile Library) through 1.0.11 allows denial of service (issue 1 of 2).
All CVEs affecting Libemf Project Libemf →
Other CWE-416 (Use After Free) vulnerabilities
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- CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
- CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
- CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
- CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…