CVE-2026-13592

HIGHPre-NVD 7.37.3
EchelonGraph scoreMEDIUM confidence

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

Score 7.3 from GitHub Security Advisory published 2026-06-29. A secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this weekElevated

Also known asEUVD-2026-40156 (ENISA EUVD) · GHSA-xxw5-vgjv-jc6g (GitHub Security Advisories)Source: ENISA EUVD

7.3EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (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: 0.6%CVSS: 7.3Exploit: No code on recordExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

A vulnerability was detected in liftoff-sr CIPster up to e8e9dba09bf56962807d3504b783ccdb6287f3e4. Affected by this issue is the function BufWriter::append of the component EtherNet IP Message Handler. Performing a manipulation results in out-of-bounds write. Remote exploitation of the attack is possible. The exploit is now public and may be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The patch is named 3a0159ed43125dcd024a1965f0289cb186bae9ff. To fix this issue, it is recommended to deploy a patch.

CVSS v3
7.3
EG Score
7.3HIGHmedium confidence
EG Risk
64
EG Risk 64/100

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)
Severity73% × 45%
Impact severity (EG Severity): CVSS 7.3 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.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.
EPSS PROB
0.6%
EPSS %ILE
50th
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 (7.3): severity, escalated by confirmed exploitation. This CVE's 7.3 is its impact severity (EG Severity), not escalated.

EG Severity
7.3 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-25). 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; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days 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; Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

June 29, 2026

Last Modified

October 25, 2026

Advisory Details (4)

Auto-updated Jun 29, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
Web page

GitHub - liftoff-sr/CIPster: Ethernet/IP (Common Industrial Protocol) stack in C++. This started as a C to C++ conversion of C based OpENer. · GitHub

https://github.com/liftoff-sr/CIPster/
GitHub commit

commit 3a0159ed4312 (liftoff-sr/CIPster)

Fix landed in liftoff-sr/CIPster commit 3a0159ed4312 — awaiting tagged release

https://github.com/liftoff-sr/CIPster/commit/3a0159ed43125dcd024a1965f0289cb186bae9ff
Web page

Writable `kCipUdint` can corrupt shared `ByteBuf` metadata and trigger remote OOB read/write · Issue #48 · liftoff-sr/CIPster · GitHub

https://github.com/liftoff-sr/CIPster/issues/48#issuecomment-4596727632
Web page

Writable `kCipUdint` can corrupt shared `ByteBuf` metadata and trigger remote OOB read/write · Issue #48 · liftoff-sr/CIPster · GitHub

https://github.com/liftoff-sr/CIPster/issues/48

Vendor Advisories for CVE-2026-13592(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 41× 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 100 of 257 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. None are among the latest 100 rows. The 157 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.6% · 50th percentile
  2. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.6% · 50th percentile
  3. 2026-10-25 21:30 UTCEG score recompute
  4. 2026-10-25 21:29 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  5. 2026-10-25 21:25 UTCNVD updateCVSS v4 → 5.5
  6. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.6% · 50th percentile
  7. 2026-10-25 14:48 UTCEG score recompute
  8. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  9. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  10. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  11. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  12. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  13. 2026-10-20 09:54 UTCEG score recompute
  14. 2026-10-20 09:54 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  15. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  16. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  17. 2026-10-18 05:03 UTCEG score recompute
  18. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  19. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  20. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  21. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  22. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  23. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  24. 2026-10-12 15:53 UTCEG score recompute
  25. 2026-10-12 15:53 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
Show 75 more
  1. 2026-10-11 20:11 UTCEG score recompute
  2. 2026-10-11 18:23 UTCEG score recompute
  3. 2026-10-11 14:57 UTCEG score recompute
  4. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  5. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  6. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  7. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  8. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  9. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  10. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  12. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  13. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  15. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  16. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  19. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  20. 2026-09-23 07:30 UTCEG score recompute
  21. 2026-09-23 07:30 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  22. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  23. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  24. 2026-09-18 06:58 UTCEG score recompute
  25. 2026-09-18 06:58 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  26. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  27. 2026-09-14 00:52 UTCEG score recompute
  28. 2026-09-14 00:52 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  29. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  30. 2026-09-13 09:25 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  31. 2026-09-12 15:14 UTCEG score recompute
  32. 2026-09-12 15:14 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  33. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  34. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  35. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  36. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  37. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  38. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  39. 2026-09-06 14:42 UTCEG score recompute
  40. 2026-09-06 14:42 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  41. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  42. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  43. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  44. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  45. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  46. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  47. 2026-08-30 18:34 UTCEG score recompute
  48. 2026-08-30 18:34 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  49. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  50. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  51. 2026-08-27 22:46 UTCEG score recompute
  52. 2026-08-27 22:46 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  53. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  54. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  55. 2026-08-25 01:28 UTCEG score recompute
  56. 2026-08-25 01:28 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  57. 2026-08-24 12:40 UTCEG score recompute
  58. 2026-08-24 12:40 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  59. 2026-08-23 23:14 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  60. 2026-08-23 10:30 UTCEG score recompute
  61. 2026-08-23 10:30 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  62. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  63. 2026-08-22 21:47 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  64. 2026-08-22 08:53 UTCEG score recompute
  65. 2026-08-22 08:53 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  66. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  67. 2026-08-21 19:56 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  68. 2026-08-21 07:13 UTCEG score recompute
  69. 2026-08-21 07:13 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  70. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  71. 2026-08-20 18:28 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  72. 2026-08-20 05:45 UTCEG score recompute
  73. 2026-08-20 05:45 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3
  74. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  75. 2026-08-19 12:35 UTCGHSA enrichmentGHSA-xxw5-vgjv-jc6g · GitHub CVSS 7.3

Frequently asked(5)

What is CVE-2026-13592?
CVE-2026-13592 is a high-severity vulnerability; its CVE record was published on June 29, 2026. A vulnerability was detected in liftoff-sr CIPster up to e8e9dba09bf56962807d3504b783ccdb6287f3e4. Affected by this issue is the function BufWriter::append of the component EtherNet IP Message Handler. Performing a manipulation results in out-of-bounds write. Remote exploitation of the attack is…
When was the CVE record for CVE-2026-13592 published?
The CVE record for CVE-2026-13592 was published on June 29, 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 October 25, 2026; the record at its source may have been updated since.
Is CVE-2026-13592 actively exploited?
CVE-2026-13592 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (50th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-13592?
CVE-2026-13592 has a CVSS base score of 7.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-13592?
An upstream fix for CVE-2026-13592 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-13592 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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