No exploitation reportedFix available

CVE-2022-48338

No exploitation reported by the sources we read.

Published2023-02-20
WeaknessCWE-77

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in GNU Emacs through 28.2. In ruby-mode.el, the ruby-find-library-file function has a local command injection vulnerability. The ruby-find-library-file function is an interactive function, and bound to C-c C-f. Inside the function, the external command gem is called through shell-command-to-string, but the feature-name parameters are not escaped. Thus, malicious Ruby source files may cause commands to be executed.

Timeline

dates in UTC

2023-02-2023:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-48338?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-48338?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Gnu emacs

Branch	Affected	Fixed in	Source
28.2	≤ 28.2	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

git.savannah.gnu.orgPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-03-18
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.17.32025-03-18
NVDCVSS 3.17.3read 2026-10-23
CISA-ADPweakness (CWE)CWE-772025-03-18
NVDweakness (CWE)CWE-77read 2026-10-23
FIRST EPSSEPSS score1.6 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Published: 2023-02-20
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-48338?

Is CVE-2022-48338 actively exploited?

Active exploitation of CVE-2022-48338 has not been confirmed. Its EPSS score was 1.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-48338?

CVE-2022-48338 has a CVSS v3 base score of 7.3 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

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