How severe is CVE-2022-48339?

CVE-2022-48339 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-48339 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-48339?

CVE-2022-48339 affects Gnu Emacs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-48339?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-48339 published?

CVE-2022-48339 was published on 2023-02-20 and last updated on 2026-06-17.

CVE-2022-48339

CVE-2022-48339 is a high-severity vulnerability in Gnu Emacs with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-116.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-116
Affected product: Gnu Emacs
Published: 2023-02-20
Last modified: 2026-06-17

Description

An issue was discovered in GNU Emacs through 28.2. htmlfontify.el has a command injection vulnerability. In the hfy-istext-command function, the parameter file and parameter srcdir come from external input, and parameters are not escaped. If a file name or directory name contains shell metacharacters, code may be executed.

Frequently asked questions

What is CVE-2022-48339?: An issue was discovered in GNU Emacs through 28.2. htmlfontify.el has a command injection vulnerability. In the hfy-istext-command function, the parameter file and parameter srcdir come from external input, and parameters are not escaped. If a file name or directory name contains shell metacharacters, code may be executed.
How severe is CVE-2022-48339?: CVE-2022-48339 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-48339 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-48339?: CVE-2022-48339 affects Gnu Emacs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-48339?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-48339 published?: CVE-2022-48339 was published on 2023-02-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnu:emacs:*:*:*:*:*:*:*:*

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