CVE-2022-48339

CRITICALNVD 7.89.8▲
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-02-21. NVD baseline CVSS 7.8; sources differ by 2.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.8
EG Score
9.8(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
64%
KEV
Not listed

Published

February 20, 2023

Last Modified

March 18, 2025

References (10)

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuemacs24-common (24.5+1-6ubuntu1.1+esm2) @ xenial2026-05-25ubuntu
ubuntuemacs-nox (1:26.3+1-1ubuntu2+esm1) @ focal2026-05-25ubuntu
redhatemacs-1:26.1-10.el8_8.42024-03-19redhat
redhatemacs-1:26.1-7.el8_6.32024-03-05redhat
redhatemacs-1:26.1-11.el82023-11-14redhat
redhatemacs-1:24.3-23.el7_9.12023-06-06redhat
redhatemacs-1:27.2-8.el9_2.12023-05-09redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:10(1)
PackageVulnerable rangeFixed inDependents
emacs1:26.1+1-3.2, 1:26.1+1-3.2+deb10u1, 1:26.1+1-3.2+deb10u2, 1:26.1+1-3.2+deb10u31:26.1+1-3.2+deb10u4—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
emacs1:27.1+1-3.1, 1:27.1+1-3.1+deb11u11:27.1+1-3.1+deb11u2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
emacs—1:28.2+1-11—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
emacs—1:28.2+1-11—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
emacs—1:28.2+1-11—

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(8)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 29× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 136 total refreshes for this CVE.

  1. 2026-08-25 13:46 UTCEPSS rescore
  2. 2026-08-23 00:17 UTCEPSS rescore
  3. 2026-08-21 23:46 UTCEPSS rescore
  4. 2026-08-20 22:53 UTCEPSS rescore
  5. 2026-08-19 17:01 UTCEPSS rescore
  6. 2026-08-18 13:45 UTCEPSS rescore
  7. 2026-08-18 01:45 UTCOSV refresh
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  21. 2026-08-04 10:35 UTCEPSS rescore
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  23. 2026-08-02 20:57 UTCOSV refresh
  24. 2026-08-02 02:24 UTCEPSS rescore
  25. 2026-08-01 04:13 UTCEPSS rescore
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  1. 2026-08-01 04:13 UTCEPSS rescore
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  7. 2026-07-23 14:16 UTCEPSS rescore
  8. 2026-07-23 14:16 UTCEPSS rescore
  9. 2026-07-23 02:16 UTCEG score recompute
  10. 2026-07-22 23:03 UTCEG score recompute
  11. 2026-07-22 14:06 UTCEPSS rescore
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  20. 2026-07-18 10:03 UTCEPSS rescore
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  22. 2026-07-16 17:00 UTCEPSS rescore
  23. 2026-07-16 05:19 UTCOSV refresh
  24. 2026-07-15 16:56 UTCEPSS rescore
  25. 2026-07-15 16:56 UTCEPSS rescore
  26. 2026-07-15 01:58 UTCEPSS rescore
  27. 2026-07-15 01:58 UTCEPSS rescore
  28. 2026-07-13 22:28 UTCEPSS rescore
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  30. 2026-07-12 05:44 UTCEPSS rescore
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  33. 2026-07-09 19:08 UTCEPSS rescore
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  43. 2026-06-29 14:04 UTCEPSS rescore
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  45. 2026-06-28 04:54 UTCEPSS rescore
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  47. 2026-06-28 04:52 UTCOSV refresh
  48. 2026-06-27 03:07 UTCEPSS rescore
  49. 2026-06-27 03:07 UTCEPSS rescore
  50. 2026-06-25 13:48 UTCEPSS rescore
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  74. 2026-06-11 13:58 UTCEPSS rescore
  75. 2026-06-11 13:58 UTCEPSS rescore

Frequently asked(5)

What is CVE-2022-48339?
CVE-2022-48339 is a critical vulnerability published on February 20, 2023. 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…
When was CVE-2022-48339 disclosed?
CVE-2022-48339 was first published in the National Vulnerability Database on February 20, 2023, with the most recent update on March 18, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-48339 actively exploited?
CVE-2022-48339 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 35.8% of all scored CVEs.
What is the CVSS score of CVE-2022-48339?
CVE-2022-48339 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.
How do I remediate CVE-2022-48339?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-48339, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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