CVE-2026-34980

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.3% (25th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a network-exposed cupsd with a shared target queue, an unauthorized client can send a Print-Job to that shared PostScript queue without authentication. The server accepts a page-border value supplied as textWithoutLanguage, preserves an embedded newline through option escaping and reparse, and then reparses the resulting second-line PPD: text as a trusted scheduler control record. A follow-up raw print job can therefore make the server execute an attacker-chosen existing binary such as /usr/bin/vim as lp. At time of publication, there are no publicly available patches.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
50
EG Risk 50/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
25th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 3, 2026

Last Modified

July 24, 2026

Advisory Details (1)

Auto-updated Jul 24, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

Shared PostScript queue lets anonymous Print-Job requests reach `lp` code execution over the network · Advisory · OpenPrinting/cups · GitHub

https://github.com/OpenPrinting/cups/security/advisories/GHSA-4852-v58g-6cwf

Vendor Advisories for CVE-2026-34980(5)

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 / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibcupsimage2t64 (2.4.16-1ubuntu1.2) @ resolute2026-07-26ubuntu
ubuntulibcupsppdc1-dev (2.1.3-4ubuntu0.11+esm13) @ xenial2026-07-26ubuntu
redhatcups-1:2.3.3op2-39.el9_82026-07-14redhat
redhatcups-1:2.4.10-18.el10_22026-07-14redhat
redhatcups-1:2.2.6-68.el8_102026-07-08redhat
redhatcups-main-2.4.17-1.hum12026-04-17redhat

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

(9 across 9 ecosystems)
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
cups—
  • every version up to 2.4.18-r0: fixed in 2.4.18-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
cups—
  • every version up to 2.4.18-r0: fixed in 2.4.18-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
cups—
  • every version up to 2.4.18-r0: fixed in 2.4.18-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
cups—
  • every version up to 2.4.18-r0: fixed in 2.4.18-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
cups—
  • every version up to 2.4.18-r0: fixed in 2.4.18-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
cups2.3.3op2-3+deb11u1 ... 2.4.7-3 (36 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
cups2.4.10-1 ... 2.4.7-3 (27 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
cups2.4.10-3 ... 2.4.18-1 (9 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
cups2.4.10-3, 2.4.10-4, 2.4.14-1, 2.4.15-1, 2.4.16-1
  • every version up to 2.4.17-1: fixed in 2.4.17-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

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 10× in last 7d / 33× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 225 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 126 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  2. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  3. 2026-10-18 03:45 UTCEG score recompute
  4. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  5. 2026-10-17 15:26 UTCEG score recompute
  6. 2026-10-17 15:26 UTCVendor advisory
  7. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  8. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  9. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  10. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  11. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  12. 2026-10-12 16:12 UTCEG score recompute
  13. 2026-10-11 19:54 UTCEG score recompute
  14. 2026-10-11 17:07 UTCEG score recompute
  15. 2026-10-11 14:34 UTCEG score recompute
  16. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  17. 2026-10-11 00:52 UTCOSV refresh
  18. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  19. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  20. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  21. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  22. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  23. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  25. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 24th percentile
Show 74 more
  1. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  2. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  3. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  4. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  5. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  6. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  7. 2026-09-21 12:49 UTCOSV refresh
  8. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  11. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  13. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  15. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  16. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  19. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  20. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  21. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  22. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  23. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-09-02 10:04 UTCOSV refresh
  25. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  26. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  27. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  28. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  29. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  30. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  31. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  32. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  33. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  34. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  35. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  36. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  37. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  38. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  39. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  40. 2026-08-16 08:34 UTCEG score recompute
  41. 2026-08-16 08:34 UTCVendor advisory
  42. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  43. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  44. 2026-08-14 18:51 UTCVendor advisory
  45. 2026-08-14 05:40 UTCEG score recompute
  46. 2026-08-14 05:40 UTCVendor advisory
  47. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  48. 2026-08-13 09:54 UTCVendor advisory
  49. 2026-08-12 19:56 UTCEG score recompute
  50. 2026-08-12 19:56 UTCVendor advisory
  51. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  52. 2026-08-11 20:15 UTCEG score recompute
  53. 2026-08-11 20:15 UTCVendor advisory
  54. 2026-08-11 03:25 UTCEG score recompute
  55. 2026-08-11 03:25 UTCVendor advisory
  56. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  57. 2026-08-10 04:36 UTCVendor advisory
  58. 2026-08-09 16:54 UTCEG score recompute
  59. 2026-08-09 16:54 UTCVendor advisory
  60. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  61. 2026-08-09 05:12 UTCEG score recompute
  62. 2026-08-09 05:12 UTCVendor advisory
  63. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  64. 2026-08-08 03:00 UTCEG score recompute
  65. 2026-08-08 03:00 UTCVendor advisory
  66. 2026-08-07 15:19 UTCEG score recompute
  67. 2026-08-07 15:19 UTCVendor advisory
  68. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  69. 2026-08-06 13:14 UTCVendor advisory
  70. 2026-08-06 00:16 UTCEG score recompute
  71. 2026-08-06 00:16 UTCVendor advisory
  72. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  73. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  74. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.5% · 40th percentile

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

Frequently asked(5)

What is CVE-2026-34980?
CVE-2026-34980 is a high-severity vulnerability; its CVE record was published on April 3, 2026. OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a network-exposed cupsd with a shared target queue, an unauthorized client can send a Print-Job to that shared PostScript queue without authentication. The server…
When was the CVE record for CVE-2026-34980 published?
The CVE record for CVE-2026-34980 was published on April 3, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 24, 2026; the record at its source may have been updated since.
Is CVE-2026-34980 actively exploited?
CVE-2026-34980 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (25th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-34980?
CVE-2026-34980 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-34980?
A fix for CVE-2026-34980 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-34980 are linked in the Vendor Advisories panel on this page.

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