01 Record

CVE-2026-43492

lib/crypto: mpi: Fix integer underflow in mpi_read_raw_from_sgl()

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

lib/crypto: mpi: Fix integer underflow in mpi_read_raw_from_sgl()

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.15% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 4.3% of scored records. A rank, not a probability.
NVD base score: 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-10-15.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-05-19 10:44Z5 MO AGO

Last updated

2026-10-15 01:19Z14 DAYS AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

66f3cf7cfe664da767ac9dbfd76f49317b04d0e59c4b24b6cf5e6b5b588ef011

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux2d4d1eea540b27c72488fd1914674c42473d53df to < a1793a48881ec8d26e9c79b0ee65753f1c6846a4, 2d4d1eea540b27c72488fd1914674c42473d53df to < 1abd50fc3cfa16fc2074a3c8c2729c50fd9d7043, 2d4d1eea540b27c72488fd1914674c42473d53df to < 6d63615c796c085b4984e3031b9fa77fffb47360, 2d4d1eea540b27c72488fd1914674c42473d53df to < 2aa77a18dc7f2670497fe3ee5acbeda0b57659e5, 2d4d1eea540b27c72488fd1914674c42473d53df to < 26d3a97ad46c7a9226ec04d4bf35bd4998a97d16, 2d4d1eea540b27c72488fd1914674c42473d53df to < 8637dfb4c1d8a7026ef681f2477c6de8b71c4003, 2d4d1eea540b27c72488fd1914674c42473d53df to < 30e513e755bb381afce6fb57cdc8694136193f22, 2d4d1eea540b27c72488fd1914674c42473d53df to < 8c2f1288250a90a4b5cabed5d888d7e3aeed4035, 4.4—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/a1793a48881ec8d26e9c79b0ee65753f1c6846a4
git.kernel.orghttps://git.kernel.org/stable/c/1abd50fc3cfa16fc2074a3c8c2729c50fd9d7043
git.kernel.orghttps://git.kernel.org/stable/c/6d63615c796c085b4984e3031b9fa77fffb47360
git.kernel.orghttps://git.kernel.org/stable/c/2aa77a18dc7f2670497fe3ee5acbeda0b57659e5
git.kernel.orghttps://git.kernel.org/stable/c/26d3a97ad46c7a9226ec04d4bf35bd4998a97d16
git.kernel.orghttps://git.kernel.org/stable/c/8637dfb4c1d8a7026ef681f2477c6de8b71c4003
git.kernel.orghttps://git.kernel.org/stable/c/30e513e755bb381afce6fb57cdc8694136193f22
git.kernel.orghttps://git.kernel.org/stable/c/8c2f1288250a90a4b5cabed5d888d7e3aeed4035
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-457936.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-784472.html

07 Fixed in

Debian 12

linux
Fixed in 6.1.176-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.88-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.0.7-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.