What is CVE-2022-45939?

CVE-2022-45939 is a high-severity vulnerability in Gnu Emacs, classified under OS Command Injection. CVSS score: 7.8/10. Published 2022-11-28.

How severe is CVE-2022-45939?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Gnu Emacs

CVE-2022-45939

GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the ctags program. For example, a v…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.006 (46.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Gnu Emacs
Debian Debian_linux — versions 10.0, 11.0
Fedoraproject Fedora — versions 36, 37
N/a — versions n/a

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

cve@mitre.org (Patch)
cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
cve@mitre.org (vendor-advisory)
cve@mitre.org (vendor-advisory)
cve@mitre.org (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2022-45939?: CVE-2022-45939 is a high-severity vulnerability in Gnu Emacs, classified under OS Command Injection. CVSS score: 7.8/10. Published 2022-11-28.
How severe is CVE-2022-45939?: High severity. CVSS v3 base score is 7.8 out of 10.