CVE-2023-1326

HIGHNVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2023-04-14. NVD baseline CVSS 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.7Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A privilege escalation attack was found in apport-cli 2.26.0 and earlier which is similar to CVE-2023-26604. If a system is specially configured to allow unprivileged users to run sudo apport-cli, less is configured as the pager, and the terminal size can be set: a local attacker can escalate privilege. It is extremely unlikely that a system administrator would configure sudo to allow unprivileged users to perform this class of exploit.

CVSS v3
7.7
EG Score
7.7(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: 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
Severity77% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
56%
KEV
Not listed

Published

April 13, 2023

Last Modified

November 21, 2024

References (4)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuapport-noui (2.23.1-0ubuntu3.2) @ kinetic2026-05-25ubuntu

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.

Weakness Classification(1)

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

All Vendor Advisories

(1)

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 140 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCdiego-tella/CVE-2023-1326-PoC
    First seen Dec 6, 2023

    A proof of concept for CVE-2023–1326 in apport-cli 2.26.0

    Open source ↗

Frequently asked(5)

What is CVE-2023-1326?
CVE-2023-1326 is a high vulnerability published on April 13, 2023. A privilege escalation attack was found in apport-cli 2.26.0 and earlier which is similar to CVE-2023-26604. If a system is specially configured to allow unprivileged users to run sudo apport-cli, less is configured as the pager, and the terminal size can be set: a local attacker can escalate…
When was CVE-2023-1326 disclosed?
CVE-2023-1326 was first published in the National Vulnerability Database on April 13, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-1326 actively exploited?
CVE-2023-1326 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 44.1% of all scored CVEs.
What is the CVSS score of CVE-2023-1326?
CVE-2023-1326 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2023-1326?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-1326, 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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