Vulnerability · Published Mar 2, 2021 · Assigned by mitre

CVE-2021-27804

Critical 9.8

In plain English

A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.0% (higher than 91% of all known vulnerabilities).

Severity (CVSS NVD)9.8Critical

Exploit odds (30 days)4.0%top 9.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

JPEG XL (aka jpeg-xl) through 0.3.2 allows writable memory corruption.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://gitlab.com/wg1/jpeg-xl/-/tags x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/03/01/3 x_refsource_MISC
20210302 Multiple Vulnerabilities in jpeg-xl (CVE-2021-27804) mailing-list, x_refsource_FULLDISC
http://packetstormsecurity.com/files/161623/jpeg-xl-0.3.1-Memory-Corruption.html x_refsource_MISC