CVE-2023-34241

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 1.4%, top 31% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.3Exploit: Elevated riskExposed: 0

A fix is available — apply it.

OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to the logging service AFTER the connection has been closed, when it should have logged the data right before. This is a use-after-free bug that impacts the entire cupsd process.

The exact cause of this issue is the function httpClose(con->http) being called in scheduler/client.c. The problem is that httpClose always, provided its argument is not null, frees the pointer at the end of the call, only for cupsdLogClient to pass the pointer to httpGetHostname. This issue happens in function cupsdAcceptClient if LogLevel is warn or higher and in two scenarios: there is a double-lookup for the IP Address (HostNameLookups Double is set in cupsd.conf) which fails to resolve, or if CUPS is compiled with TCP wrappers and the connection is refused by rules from /etc/hosts.allow and /etc/hosts.deny.

Version 2.4.6 has a patch for this issue.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
55(Attend)
EG Risk 55/100SSVC: Attend

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
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
70%
KEV
Not listed

Published

June 22, 2023

Last Modified

November 21, 2024

References (22)

Vendor Advisories for CVE-2023-34241(1)

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

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntucups-daemon (2.4.2-3ubuntu2.2) @ lunar2026-05-24ubuntu
ubuntucups-daemon (2.1.3-4ubuntu0.11+esm3) @ xenial2026-05-24ubuntu
redhatcups-1:2.2.6-51.el8_8.32024-03-19redhat
redhatcups-1:2.2.6-45.el8_6.42024-03-05redhat
redhatcups-1:2.2.6-54.el8_92023-11-14redhat
redhatcups-1:2.3.3op2-21.el92023-11-07redhat

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

(8 across 8 ecosystems)
Alpine:v3.15(1)
PackageVulnerable rangeFixed inDependents
cups—2.3.3-r8—
Alpine:v3.16(1)
PackageVulnerable rangeFixed inDependents
cups—2.4.2-r2—
Alpine:v3.17(1)
PackageVulnerable rangeFixed inDependents
cups—2.4.2-r3—
Debian:10(1)
PackageVulnerable rangeFixed inDependents
cups2.2.10-6 ... 2.2.10-6+deb10u7 (8 versions)2.2.10-6+deb10u8—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
cups2.3.3op2-3+deb11u1, 2.3.3op2-3+deb11u22.3.3op2-3+deb11u3—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
cups2.4.2-32.4.2-3+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
cups—2.4.2-5—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
cups—2.4.2-5—

Weakness Classification(1)

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

Additional Vendor Advisories

(6)

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 6× in last 7d / 40× 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 138 total refreshes for this CVE.

  1. 2026-08-15 01:28 UTCEPSS rescore
  2. 2026-08-13 21:58 UTCEPSS rescore
  3. 2026-08-12 13:48 UTCEPSS rescore
  4. 2026-08-11 13:39 UTCEPSS rescore
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  14. 2026-08-02 09:58 UTCOSV refresh
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  1. 2026-07-23 14:16 UTCEPSS rescore
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  3. 2026-07-23 02:23 UTCEG score recompute
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  5. 2026-07-22 14:06 UTCEPSS rescore
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  15. 2026-07-16 17:01 UTCEPSS rescore
  16. 2026-07-15 17:23 UTCOSV refresh
  17. 2026-07-15 16:56 UTCEPSS rescore
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  19. 2026-07-15 01:58 UTCEPSS rescore
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  21. 2026-07-13 22:28 UTCEPSS rescore
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  23. 2026-07-13 06:11 UTCEPSS rescore
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  25. 2026-07-12 05:45 UTCEPSS rescore
  26. 2026-07-11 08:26 UTCEPSS rescore
  27. 2026-07-11 08:25 UTCEPSS rescore
  28. 2026-07-09 19:08 UTCEPSS rescore
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  30. 2026-07-08 15:13 UTCEPSS rescore
  31. 2026-07-07 13:44 UTCEPSS rescore
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  39. 2026-06-30 23:21 UTCEPSS rescore
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  45. 2026-06-28 04:55 UTCEPSS rescore
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  47. 2026-06-27 18:04 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. 2026-06-12 23:10 UTCEPSS rescore
  75. 2026-06-12 23:10 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-34241?
CVE-2023-34241 is a medium vulnerability published on June 22, 2023. OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to the logging service AFTER the connection has been closed, when it should have logged the data…
When was CVE-2023-34241 disclosed?
CVE-2023-34241 was first published in the National Vulnerability Database on June 22, 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-2023-34241 actively exploited?
CVE-2023-34241 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 30.2% of all scored CVEs.
What is the CVSS score of CVE-2023-34241?
CVE-2023-34241 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2023-34241?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-34241, 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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