CVE-2021-27804 json
JPEG XL (aka jpeg-xl) through 0.3.2 allows writable memory corruption.
published 2021-03-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14545
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.0%
- EPSS 4.0% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
Summary
JPEG XL (aka jpeg-xl) through 0.3.2 allows writable memory corruption.
Exploit prediction
3.99% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
gitlab.com
/wg1/jpeg-xl/-/tags
third-party-advisory
-
openwall.com
/lists/oss-security/2021/03/01/3
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2021/Mar/2
mailing-list, third-party-advisory
-
packetstormsecurity.com
/files/161623/jpeg-xl-0.3.1-Memory-Corruption.html
third-party-advisory
Sources
- CVE List CVE-2021-27804
- NVD CVE-2021-27804
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