CVE-2026-81334

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-08-27. a secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

darknet subscripts its layer array with an index taken from a configuration file without checking it against the array's length. The array is allocated in src-lib/darknet_network.cpp as xcalloc(net.n, sizeof(Darknet::Layer)), sized to exactly the number of layer sections the file declares. The shortcut, scale_channels and sam sections supply that index through their from field and the route section through its layers field, and parse_shortcut_section in src-lib/darknet_cfg.cpp reads net.layers[index].outputs with no bounds check, which reads past the allocation. The dispatch loop in create_network then reuses the same index to assign net.layers[l.index].use_bin_output and net.layers[l.index].keep_delta_gpu, writing past the allocation at an offset the file controls, with a fixed one-byte value. Parsing a crafted configuration file is sufficient: the parse runs before any weights file is opened and needs no non-default option, so the result is a reliable crash and a write whose location, though not its value, is chosen by whoever supplied the file.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 27, 2026

Advisory Details (4)

Auto-updated Aug 27, 2026
No patch confirmed yet.
generic

darknet through 6.0 Out-of-Bounds Read and Write via Unchecked Layer Index in .cfg Parser | Advisories | VulnCheck

https://www.vulncheck.com/advisories/darknet-through-6.0-out-of-bounds-read-and-write-via-unchecked-layer-index-in-cfg-parser
generic

darknet/src-lib/darknet_network.cpp at v6.0 · hank-ai/darknet · GitHub

https://github.com/hank-ai/darknet/blob/v6.0/src-lib/darknet_network.cpp
generic

darknet/src-lib/darknet_cfg.cpp at v6.0 · hank-ai/darknet · GitHub

https://github.com/hank-ai/darknet/blob/v6.0/src-lib/darknet_cfg.cpp
generic

GitHub - hank-ai/darknet: Darknet/YOLO object detection framework · GitHub

https://github.com/hank-ai/darknet

Vendor Advisories for CVE-2026-81334(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 18× in last 7d / 67× 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. 2026-09-19 21:09 UTCEG score recompute
  2. 2026-09-19 21:09 UTCGHSA enrichment
  3. 2026-09-18 21:30 UTCEG score recompute
  4. 2026-09-18 21:29 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-17 21:29 UTCEG score recompute
  7. 2026-09-17 21:29 UTCGHSA enrichment
  8. 2026-09-16 21:50 UTCEG score recompute
  9. 2026-09-16 21:50 UTCGHSA enrichment
  10. 2026-09-16 14:08 UTCEPSS rescore
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 22:12 UTCEG score recompute
  13. 2026-09-15 22:12 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 22:33 UTCGHSA enrichment
  17. 2026-09-13 22:55 UTCEG score recompute
  18. 2026-09-13 22:55 UTCGHSA enrichment
  19. 2026-09-12 23:18 UTCEG score recompute
  20. 2026-09-12 23:18 UTCGHSA enrichment
  21. 2026-09-11 23:40 UTCEG score recompute
  22. 2026-09-11 23:40 UTCGHSA enrichment
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 00:01 UTCEG score recompute
Show 42 more
  1. 2026-09-11 00:01 UTCGHSA enrichment
  2. 2026-09-10 00:20 UTCGHSA enrichment
  3. 2026-09-09 00:41 UTCEG score recompute
  4. 2026-09-09 00:41 UTCGHSA enrichment
  5. 2026-09-08 22:01 UTCEPSS rescore
  6. 2026-09-07 20:47 UTCEG score recompute
  7. 2026-09-07 20:47 UTCGHSA enrichment
  8. 2026-09-06 21:10 UTCEG score recompute
  9. 2026-09-06 21:09 UTCGHSA enrichment
  10. 2026-09-06 13:48 UTCEPSS rescore
  11. 2026-09-05 21:27 UTCEG score recompute
  12. 2026-09-05 21:27 UTCGHSA enrichment
  13. 2026-09-05 15:31 UTCEPSS rescore
  14. 2026-09-04 21:50 UTCEG score recompute
  15. 2026-09-04 21:50 UTCGHSA enrichment
  16. 2026-09-04 05:07 UTCEPSS rescore
  17. 2026-09-03 22:12 UTCGHSA enrichment
  18. 2026-09-02 22:05 UTCEG score recompute
  19. 2026-09-02 22:04 UTCGHSA enrichment
  20. 2026-09-02 14:12 UTCEPSS rescore
  21. 2026-09-01 22:25 UTCEG score recompute
  22. 2026-09-01 22:25 UTCGHSA enrichment
  23. 2026-09-01 13:54 UTCEPSS rescore
  24. 2026-09-01 04:40 UTCEPSS rescore
  25. 2026-09-01 04:40 UTCEPSS rescore
  26. 2026-08-31 22:47 UTCGHSA enrichment
  27. 2026-08-30 23:10 UTCEG score recompute
  28. 2026-08-30 23:10 UTCGHSA enrichment
  29. 2026-08-30 19:18 UTCEPSS rescore
  30. 2026-08-30 19:17 UTCEPSS rescore
  31. 2026-08-30 01:22 UTCEPSS rescore
  32. 2026-08-29 23:32 UTCGHSA enrichment
  33. 2026-08-28 23:54 UTCEG score recompute
  34. 2026-08-28 23:53 UTCGHSA enrichment
  35. 2026-08-28 21:42 UTCEPSS rescore
  36. 2026-08-27 20:27 UTCEG score recompute
  37. 2026-08-27 20:27 UTCGHSA enrichment
  38. 2026-08-27 20:18 UTCEG score recompute
  39. 2026-08-27 20:18 UTCGHSA enrichment
  40. 2026-08-27 17:25 UTCEG score recompute
  41. 2026-08-27 16:47 UTCEG score recompute
  42. 2026-08-27 16:43 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81334?
CVE-2026-81334 is a medium vulnerability published on August 27, 2026. darknet subscripts its layer array with an index taken from a configuration file without checking it against the array's length. The array is allocated in src-lib/darknetnetwork.cpp as xcalloc(net.n, sizeof(Darknet::Layer)), sized to exactly the number of layer sections the file declares. The…
When was CVE-2026-81334 disclosed?
CVE-2026-81334 was first published in the National Vulnerability Database on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81334 actively exploited?
CVE-2026-81334 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.0% of all scored CVEs.
What is the CVSS score of CVE-2026-81334?
CVE-2026-81334 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-81334?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81334, 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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