CVE-2021-36691
CVE-2021-36691 is a high-severity vulnerability in Libjxl Project Libjxl with a CVSS 3.x base score of 7.5. 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-617.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-617
- Affected product: Libjxl Project Libjxl
- Published:
- Last modified:
Description
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
Frequently asked questions
- What is CVE-2021-36691?
- libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
- How severe is CVE-2021-36691?
- CVE-2021-36691 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2021-36691 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-36691?
- CVE-2021-36691 affects Libjxl Project Libjxl. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-36691?
- 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-2021-36691 published?
- CVE-2021-36691 was published on 2021-08-30 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:libjxl_project:libjxl:0.5.0:*:*:*:*:*:*:*
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All CVEs affecting Libjxl Project Libjxl →
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