9.8

CVE-2026-74394: linux

CVSS: 9.8v3.1CriticalReceived
AliasesUBUNTU-CVE-2026-74394DEBIAN-CVE-2026-74394
Published 15-08-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-74394 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 44.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.54%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 161 · Related 161
OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23477-1SUSE-SU-2026:23481-1SUSE-SU-2026:23528-1SUSE-SU-2026:23529-1SUSE-SU-2026:23881-1

Showing 100 of 161. Use Open JSON for the complete list.

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.54%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

0.00 pp

From 0.54% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.54%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu165 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-34.34
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1013.13
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639, < c82c860f8c8e4f4f454c9f14d0ad0c0466965f7d | ≥ 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639, < 3efa5301137140a3ca3677a9098c0a93a0acfd49 | ≥ 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639, < 067b9556eeb007f28b7c2033b4dcde5b6d88418f | ≥ 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639, < dcf7a986f377cce0749ed53f1d64195fbd5fdf91 | ≥ 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639, < 07dec3f6dcb6c6cc891162d252b800eb0e6d5e8e | ≥ 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639, < 65572fbd86033ae2370125593d59b8be34253aaf | ≥ 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639, < 72497172a4799119a0282a5eb5e2b8ddcc821921 | ≥ 5dabcd0456d7ee17c2c7a17d7c2305444d2b9639, < eb4ecdf631fe00e8020bf461503cb9b7017ed796 | 5.0

3 vendors · 167 products

References

27 links
Show all 27 references