CVE-2026-32849 (GCVE-0-2026-32849)

Vulnerability from cvelistv5 – Published: 2026-05-18 17:42 – Updated: 2026-07-14 18:40 X_Open Source
VLAI
Title
NetBSD Signed Integer Overflow in cryptodev_op via cryptodev.c
Summary
NetBSD prior to commit ec8451e contains a signed integer overflow vulnerability in the cryptodev_op() function in sys/opencrypto/cryptodev.c where the local variable iov_len is declared as a signed int but assigned from an unsigned cop->dst_len value, causing undefined behavior when cop->dst_len exceeds INT_MAX. A local attacker with access to /dev/crypto and a compression session type can exploit this vulnerability by providing a dst_len value exceeding INT_MAX to trigger a kernel panic through NULL pointer dereference when CONFIG_SVS is disabled and corrupted UIO pointer arithmetic.
Severity
5.7 (Medium)
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-18 18:56 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
  • CWE-476 - NULL Pointer Dereference
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7827 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
NetBSD src Affected: 0 , < ec8451efc1565516aba9e7047e1a1a1ce7953a2f (git)
guessed Create a notification for this product.
Date Public
2026-04-29 00:00
Credits
nasm VulnCheck
Show details on NVD website
To clipboard 

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