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: 1.1%CVSS: 7.8Exploit: None knownExposed services: Not assessed

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
9.8CRITICALmedium confidence
EG Risk
45
EG Risk 45/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
1.1%
EPSS %ILE
65th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

February 20, 2023

Last Modified

March 18, 2025

Advisory Details (5)

Auto-updated Oct 3, 2026
Patch available.
generic

[SECURITY] [DSA 5360-1] emacs security update

https://www.debian.org/security/2023/dsa-5360
generic

[SECURITY] Fedora 38 Update: emacs-28.3-0.rc1.fc38 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6HDBUQNAH2WL4MHWCTUZLN7NGF7CHTK/
generic

[SECURITY] Fedora 37 Update: emacs-28.3-0.rc1.fc37 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FLPQ4K6H2S5TY3L5UDN4K4B3L5RQJYQ6/
genericMentions a patch (unverified)

[SECURITY] [DLA 3416-1] emacs security update

https://lists.debian.org/debian-lts-announce/2023/05/msg00008.html
generic

Fix htmlfontify.el command injection vulnerability. - emacs.git - Emacs source repository

https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=1b4dc4691c1f87fc970fbe568b43869a15ad0d4c

Vendor Advisories for CVE-2022-48339(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(7)

Vendor / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
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+deb10u3
  • every version up to 1:26.1+1-3.2+deb10u4: fixed in 1:26.1+1-3.2+deb10u4
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
emacs1:27.1+1-3.1, 1:27.1+1-3.1+deb11u1
  • every version up to 1:27.1+1-3.1+deb11u2: fixed in 1:27.1+1-3.1+deb11u2
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
emacs—
  • every version up to 1:28.2+1-11: fixed in 1:28.2+1-11
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
emacs—
  • every version up to 1:28.2+1-11: fixed in 1:28.2+1-11
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
emacs—
  • every version up to 1:28.2+1-11: fixed in 1:28.2+1-11
—

Weakness Classification(3)

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

Additional Vendor Advisories

(7)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 22× 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 172 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-08 17:05 UTCEPSS rescore
  3. 2026-10-07 23:45 UTCEPSS rescore
  4. 2026-10-06 15:14 UTCEPSS rescore
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  6. 2026-10-04 23:19 UTCEPSS rescore
  7. 2026-10-03 14:23 UTCEPSS rescore
  8. 2026-09-30 16:11 UTCEG score recompute
  9. 2026-09-30 15:01 UTCEPSS rescore
  10. 2026-09-27 13:42 UTCEPSS rescore
  11. 2026-09-26 15:55 UTCEPSS rescore
  12. 2026-09-26 00:22 UTCEPSS rescore
  13. 2026-09-24 14:00 UTCEPSS rescore
  14. 2026-09-23 19:41 UTCOSV refresh
  15. 2026-09-23 13:45 UTCEPSS rescore
  16. 2026-09-20 20:13 UTCEPSS rescore
  17. 2026-09-16 14:05 UTCEPSS rescore
  18. 2026-09-16 05:11 UTCEPSS rescore
  19. 2026-09-15 03:07 UTCEPSS rescore
  20. 2026-09-13 16:44 UTCEPSS rescore
  21. 2026-09-11 14:50 UTCEPSS rescore
  22. 2026-09-11 09:34 UTCEPSS rescore
  23. 2026-09-08 21:57 UTCEPSS rescore
  24. 2026-09-07 15:59 UTCEPSS rescore
  25. 2026-09-06 13:45 UTCEPSS rescore
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  1. 2026-09-05 15:25 UTCEPSS rescore
  2. 2026-09-04 14:29 UTCOSV refresh
  3. 2026-09-04 13:57 UTCEPSS rescore
  4. 2026-09-04 05:04 UTCEPSS rescore
  5. 2026-09-02 14:09 UTCEPSS rescore
  6. 2026-09-01 13:51 UTCEPSS rescore
  7. 2026-08-30 19:15 UTCEPSS rescore
  8. 2026-08-30 01:19 UTCEPSS rescore
  9. 2026-08-28 21:38 UTCEPSS rescore
  10. 2026-08-27 14:22 UTCEPSS rescore
  11. 2026-08-26 14:43 UTCEPSS rescore
  12. 2026-08-25 13:46 UTCEPSS rescore
  13. 2026-08-23 00:17 UTCEPSS rescore
  14. 2026-08-21 23:46 UTCEPSS rescore
  15. 2026-08-20 22:53 UTCEPSS rescore
  16. 2026-08-19 17:01 UTCEPSS rescore
  17. 2026-08-18 13:45 UTCEPSS rescore
  18. 2026-08-18 01:45 UTCOSV refresh
  19. 2026-08-17 13:44 UTCEPSS rescore
  20. 2026-08-16 14:53 UTCEPSS rescore
  21. 2026-08-16 02:12 UTCEPSS rescore
  22. 2026-08-15 01:27 UTCEPSS rescore
  23. 2026-08-13 21:58 UTCEPSS rescore
  24. 2026-08-12 13:48 UTCEPSS rescore
  25. 2026-08-09 13:44 UTCEPSS rescore
  26. 2026-08-09 13:44 UTCEPSS rescore
  27. 2026-08-08 16:34 UTCEPSS rescore
  28. 2026-08-07 16:24 UTCEPSS rescore
  29. 2026-08-06 13:44 UTCEPSS rescore
  30. 2026-08-05 19:15 UTCEPSS rescore
  31. 2026-08-04 15:07 UTCEPSS rescore
  32. 2026-08-04 10:35 UTCEPSS rescore
  33. 2026-08-03 10:33 UTCEPSS rescore
  34. 2026-08-02 20:57 UTCOSV refresh
  35. 2026-08-02 02:24 UTCEPSS rescore
  36. 2026-08-01 04:13 UTCEPSS rescore
  37. 2026-08-01 04:13 UTCEPSS rescore
  38. 2026-07-30 16:25 UTCEPSS rescore
  39. 2026-07-30 01:28 UTCEPSS rescore
  40. 2026-07-28 15:34 UTCEPSS rescore
  41. 2026-07-25 14:16 UTCEPSS rescore
  42. 2026-07-24 14:15 UTCEPSS rescore
  43. 2026-07-23 14:16 UTCEPSS rescore
  44. 2026-07-23 14:16 UTCEPSS rescore
  45. 2026-07-23 02:16 UTCEG score recompute
  46. 2026-07-22 23:03 UTCEG score recompute
  47. 2026-07-22 14:06 UTCEPSS rescore
  48. 2026-07-22 14:06 UTCEPSS rescore
  49. 2026-07-21 15:23 UTCEPSS rescore
  50. 2026-07-21 15:23 UTCEPSS rescore
  51. 2026-07-20 17:05 UTCEPSS rescore
  52. 2026-07-19 14:29 UTCEPSS rescore
  53. 2026-07-19 14:29 UTCEPSS rescore
  54. 2026-07-19 02:27 UTCEPSS rescore
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  56. 2026-07-18 10:03 UTCEPSS rescore
  57. 2026-07-18 10:03 UTCEPSS rescore
  58. 2026-07-16 17:00 UTCEPSS rescore
  59. 2026-07-16 05:19 UTCOSV refresh
  60. 2026-07-15 16:56 UTCEPSS rescore
  61. 2026-07-15 16:56 UTCEPSS rescore
  62. 2026-07-15 01:58 UTCEPSS rescore
  63. 2026-07-15 01:58 UTCEPSS rescore
  64. 2026-07-13 22:28 UTCEPSS rescore
  65. 2026-07-13 22:28 UTCEPSS rescore
  66. 2026-07-12 05:44 UTCEPSS rescore
  67. 2026-07-11 08:25 UTCEPSS rescore
  68. 2026-07-11 08:25 UTCEPSS rescore
  69. 2026-07-09 19:08 UTCEPSS rescore
  70. 2026-07-08 15:13 UTCEPSS rescore
  71. 2026-07-07 13:44 UTCEPSS rescore
  72. 2026-07-06 16:25 UTCEPSS rescore
  73. 2026-07-06 02:21 UTCEPSS rescore
  74. 2026-07-05 02:28 UTCEPSS rescore
  75. 2026-07-04 06:29 UTCEPSS rescore

Related CVEs(same product + same vendor + same CWE)

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 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 1.1% probability of exploitation in the next 30 days (65th percentile of EPSS-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 (CRITICAL).
How do I remediate CVE-2022-48339?
A fix for CVE-2022-48339 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-48339 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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