CVE-2026-85234

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-15. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in tftp-hpa. When the in.tftpd remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the genmatchstring() function. This leads to out-of-bounds read/write operations. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted request, causing the daemon to crash and resulting in a denial of service.

CVSS v3
7.5
EG Score
7.5HIGHhigh confidence
EG Risk
49
EG Risk 49/100CISA 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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.8%
EPSS %ILE
54th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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

September 15, 2026

Last Modified

September 16, 2026

Advisory Details (3)

Auto-updated Sep 15, 2026
Patch available. Sources: redhat.
generic

remap: add label/jump support, tidy up the code and documentation - tftp/tftp-hpa.git - tftp-hpa official tree

https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=4b493532f5ce052a1c124acd0661233ec7918327
redhat

2460997 – (CVE-2026-85234) CVE-2026-85234 tftp: tftp-hpa: Denial of Service due to out-of-bounds read/write in remap engine

https://bugzilla.redhat.com/show_bug.cgi?id=2460997
redhat Patch Available

CVE-2026-85234 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-85234

Vendor Advisories for CVE-2026-85234(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
tftp-hpa5.2+20150808-1.4 ... 7.2-3 (15 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
tftp-hpa5.2+20240610-3 ... 7.2-3 (11 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
tftp-hpa5.2+20240610-3, 5.3+20251110-1
  • every version up to 5.3+20251116-1: fixed in 5.3+20251116-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 27× in last 7d / 86× 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.

  1. 2026-10-05 08:58 UTCGHSA enrichment
  2. 2026-10-04 21:55 UTCGHSA enrichment
  3. 2026-10-04 10:54 UTCGHSA enrichment
  4. 2026-10-03 23:45 UTCEG score recompute
  5. 2026-10-03 23:45 UTCGHSA enrichment
  6. 2026-10-03 14:26 UTCEPSS rescore
  7. 2026-10-03 12:40 UTCGHSA enrichment
  8. 2026-10-03 01:39 UTCEG score recompute
  9. 2026-10-03 01:39 UTCGHSA enrichment
  10. 2026-10-02 17:57 UTCEPSS rescore
  11. 2026-10-02 14:38 UTCGHSA enrichment
  12. 2026-10-02 03:22 UTCEG score recompute
  13. 2026-10-02 03:21 UTCGHSA enrichment
  14. 2026-10-01 19:50 UTCEPSS rescore
  15. 2026-10-01 16:21 UTCGHSA enrichment
  16. 2026-10-01 05:20 UTCGHSA enrichment
  17. 2026-09-30 18:20 UTCEG score recompute
  18. 2026-09-30 18:19 UTCGHSA enrichment
  19. 2026-09-30 15:04 UTCEPSS rescore
  20. 2026-09-30 07:19 UTCGHSA enrichment
  21. 2026-09-29 20:19 UTCEG score recompute
  22. 2026-09-29 20:19 UTCGHSA enrichment
  23. 2026-09-29 08:23 UTCEG score recompute
  24. 2026-09-29 08:23 UTCGHSA enrichment
  25. 2026-09-28 21:23 UTCEG score recompute
Show 61 more
  1. 2026-09-28 21:23 UTCGHSA enrichment
  2. 2026-09-28 13:52 UTCEPSS rescore
  3. 2026-09-28 10:22 UTCGHSA enrichment
  4. 2026-09-27 23:22 UTCEG score recompute
  5. 2026-09-27 23:22 UTCGHSA enrichment
  6. 2026-09-27 13:48 UTCEPSS rescore
  7. 2026-09-27 12:21 UTCGHSA enrichment
  8. 2026-09-27 01:20 UTCEG score recompute
  9. 2026-09-27 01:20 UTCGHSA enrichment
  10. 2026-09-26 15:59 UTCEPSS rescore
  11. 2026-09-26 14:15 UTCGHSA enrichment
  12. 2026-09-26 03:13 UTCEG score recompute
  13. 2026-09-26 03:13 UTCGHSA enrichment
  14. 2026-09-25 16:11 UTCGHSA enrichment
  15. 2026-09-25 05:11 UTCGHSA enrichment
  16. 2026-09-24 18:10 UTCEG score recompute
  17. 2026-09-24 18:10 UTCGHSA enrichment
  18. 2026-09-24 14:04 UTCEPSS rescore
  19. 2026-09-24 06:21 UTCGHSA enrichment
  20. 2026-09-23 19:20 UTCEG score recompute
  21. 2026-09-23 19:20 UTCGHSA enrichment
  22. 2026-09-23 17:54 UTCEPSS rescore
  23. 2026-09-23 07:29 UTCGHSA enrichment
  24. 2026-09-22 20:29 UTCEG score recompute
  25. 2026-09-22 20:29 UTCGHSA enrichment
  26. 2026-09-22 16:01 UTCEPSS rescore
  27. 2026-09-22 09:28 UTCGHSA enrichment
  28. 2026-09-21 22:26 UTCEG score recompute
  29. 2026-09-21 22:26 UTCGHSA enrichment
  30. 2026-09-21 21:09 UTCEPSS rescore
  31. 2026-09-21 11:25 UTCGHSA enrichment
  32. 2026-09-21 00:25 UTCEG score recompute
  33. 2026-09-21 00:25 UTCGHSA enrichment
  34. 2026-09-20 20:16 UTCEPSS rescore
  35. 2026-09-20 13:24 UTCGHSA enrichment
  36. 2026-09-20 02:24 UTCEG score recompute
  37. 2026-09-20 02:24 UTCGHSA enrichment
  38. 2026-09-19 15:23 UTCGHSA enrichment
  39. 2026-09-19 04:22 UTCEG score recompute
  40. 2026-09-19 04:21 UTCGHSA enrichment
  41. 2026-09-18 19:28 UTCEPSS rescore
  42. 2026-09-18 17:21 UTCGHSA enrichment
  43. 2026-09-18 06:20 UTCEG score recompute
  44. 2026-09-18 06:20 UTCGHSA enrichment
  45. 2026-09-17 19:32 UTCEPSS rescore
  46. 2026-09-17 19:19 UTCGHSA enrichment
  47. 2026-09-17 06:57 UTCGHSA enrichment
  48. 2026-09-16 19:57 UTCGHSA enrichment
  49. 2026-09-16 18:54 UTCEG score recompute
  50. 2026-09-16 18:53 UTCGHSA enrichment
  51. 2026-09-16 14:09 UTCEPSS rescore
  52. 2026-09-16 07:51 UTCGHSA enrichment
  53. 2026-09-15 20:42 UTCEG score recompute
  54. 2026-09-15 20:42 UTCGHSA enrichment
  55. 2026-09-15 19:48 UTCEG score recompute
  56. 2026-09-15 19:48 UTCGHSA enrichment
  57. 2026-09-15 19:37 UTCEG score recompute
  58. 2026-09-15 19:37 UTCGHSA enrichment
  59. 2026-09-15 18:32 UTCEG score recompute
  60. 2026-09-15 18:04 UTCEG score recompute
  61. 2026-09-15 18:02 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-85234?
CVE-2026-85234 is a high vulnerability published on September 15, 2026. A flaw was found in tftp-hpa. When the in.tftpd remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the genmatchstring() function. This leads to out-of-bounds read/write operations. A remote, unauthenticated…
When was CVE-2026-85234 disclosed?
CVE-2026-85234 was first published on September 15, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85234 actively exploited?
CVE-2026-85234 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (54th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-85234?
CVE-2026-85234 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-85234?
A fix for CVE-2026-85234 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-85234 are linked in the Vendor Advisories panel on this page.

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