CVE-2020-18775
CVE-2020-18775 is a medium-severity vulnerability in Libav with a CVSS 3.x base score of 6.5. 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: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Libav
- Published:
- Last modified:
Description
In Libav 12.3, there is a heap-based buffer over-read in vc1_decode_b_mb_intfi in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.
Frequently asked questions
- What is CVE-2020-18775?
- In Libav 12.3, there is a heap-based buffer over-read in vc1_decode_b_mb_intfi in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.
- How severe is CVE-2020-18775?
- CVE-2020-18775 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-18775 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-18775?
- CVE-2020-18775 affects Libav. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-18775?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-18775 published?
- CVE-2020-18775 was published on 2021-08-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:libav:libav:12.3:*:*:*:*:*:*:*
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