CVE-2021-27804
9.8
CRITICAL · CVSS 3.1 · EPSS 4% (pctl 90)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
JPEG XL (aka jpeg-xl) through 0.3.2 allows writable memory corruption.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.99% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-03-02 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| libjxl project | libjxl |
References
- http://packetstormsecurity.com/files/161623/jpeg-xl-0.3.1-Memory-Corruption.html
- http://seclists.org/fulldisclosure/2021/Mar/2
- http://www.openwall.com/lists/oss-security/2021/03/01/3
- https://gitlab.com/wg1/jpeg-xl/-/tags
- http://packetstormsecurity.com/files/161623/jpeg-xl-0.3.1-Memory-Corruption.html
- http://seclists.org/fulldisclosure/2021/Mar/2
- http://www.openwall.com/lists/oss-security/2021/03/01/3
- https://gitlab.com/wg1/jpeg-xl/-/tags
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