CVE-2026-74394

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-15. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

In the Linux kernel, the following vulnerability has been resolved:

RDMA/srpt: fix integer overflow in immediate data length check

imm_buf->len is a user-controlled uint32_t received from the network. Adding it to imm_data_offset without overflow checking allows a malicious initiator to send len=0xFFFFFFFF, causing req_size to wrap around to a small value, bypassing the bounds check, and subsequently passing a ~4GB length to sg_init_one().

Use check_add_overflow() to detect wrapping before the comparison.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (8)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

RDMA/srpt: fix integer overflow in immediate data length check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/eb4ecdf631fe00e8020bf461503cb9b7017ed796
generic

RDMA/srpt: fix integer overflow in immediate data length check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dcf7a986f377cce0749ed53f1d64195fbd5fdf91
generic

RDMA/srpt: fix integer overflow in immediate data length check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d
generic

RDMA/srpt: fix integer overflow in immediate data length check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/72497172a4799119a0282a5eb5e2b8ddcc821921
generic

RDMA/srpt: fix integer overflow in immediate data length check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/65572fbd86033ae2370125593d59b8be34253aaf
generic

RDMA/srpt: fix integer overflow in immediate data length check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3efa5301137140a3ca3677a9098c0a93a0acfd49
generic

RDMA/srpt: fix integer overflow in immediate data length check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e
generic

RDMA/srpt: fix integer overflow in immediate data length check - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/067b9556eeb007f28b7c2033b4dcde5b6d88418f

Vendor Advisories for CVE-2026-74394(1)

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

Data Freshness Timeline

(refreshed 47× in last 7d / 47× 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. 2026-08-21 09:02 UTCGHSA enrichment
  2. 2026-08-21 04:48 UTCGHSA enrichment
  3. 2026-08-21 00:33 UTCEG score recompute
  4. 2026-08-21 00:33 UTCGHSA enrichment
  5. 2026-08-20 22:56 UTCEPSS rescore
  6. 2026-08-20 20:20 UTCGHSA enrichment
  7. 2026-08-20 16:06 UTCGHSA enrichment
  8. 2026-08-20 11:51 UTCGHSA enrichment
  9. 2026-08-20 07:35 UTCGHSA enrichment
  10. 2026-08-20 03:21 UTCGHSA enrichment
  11. 2026-08-19 23:06 UTCGHSA enrichment
  12. 2026-08-19 18:52 UTCEG score recompute
  13. 2026-08-19 18:52 UTCGHSA enrichment
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 14:38 UTCGHSA enrichment
  16. 2026-08-19 10:24 UTCGHSA enrichment
  17. 2026-08-19 06:07 UTCGHSA enrichment
  18. 2026-08-19 01:50 UTCGHSA enrichment
  19. 2026-08-18 21:37 UTCGHSA enrichment
  20. 2026-08-18 17:00 UTCEG score recompute
  21. 2026-08-18 17:00 UTCGHSA enrichment
  22. 2026-08-18 13:49 UTCEPSS rescore
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-18 12:07 UTCGHSA enrichment
  25. 2026-08-18 07:51 UTCGHSA enrichment
Show 22 more
  1. 2026-08-18 03:37 UTCGHSA enrichment
  2. 2026-08-17 23:23 UTCGHSA enrichment
  3. 2026-08-17 19:08 UTCGHSA enrichment
  4. 2026-08-17 14:53 UTCEG score recompute
  5. 2026-08-17 14:53 UTCGHSA enrichment
  6. 2026-08-17 13:47 UTCEPSS rescore
  7. 2026-08-17 10:39 UTCEG score recompute
  8. 2026-08-17 10:39 UTCGHSA enrichment
  9. 2026-08-17 06:26 UTCEG score recompute
  10. 2026-08-17 06:26 UTCGHSA enrichment
  11. 2026-08-17 05:56 UTCEG score recompute▲ 9.80
  12. 2026-08-17 05:56 UTCGHSA enrichment
  13. 2026-08-17 05:54 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  14. 2026-08-17 05:26 UTCEG score recompute
  15. 2026-08-17 05:26 UTCGHSA enrichment
  16. 2026-08-17 05:24 UTCMITRE cvelistV5
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 02:15 UTCEPSS rescore
  20. 2026-08-15 06:23 UTCNVD update
  21. 2026-08-15 06:14 UTCEG score recompute
  22. 2026-08-15 06:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74394?
CVE-2026-74394 is a critical vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: fix integer overflow in immediate data length check immbuf->len is a user-controlled uint32t received from the network. Adding it to immdataoffset without overflow checking allows a malicious initiator to send…
When was CVE-2026-74394 disclosed?
CVE-2026-74394 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74394 actively exploited?
CVE-2026-74394 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 56.5% of all scored CVEs.
What is the CVSS score of CVE-2026-74394?
CVE-2026-74394 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-74394?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74394, 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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