01 Record

CVE-2026-23300

net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop

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: 0.13% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 2.9% 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 2026-07-14.
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

2026-03-25 10:26Z5 MO AGO

Last updated

2026-07-14 12:46Z1 MO AGO

Reserved

2026-01-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase
CWE-909Missing Initialization of ResourceClass

Data version

5.2

Document digest

28bad185da41839f83616fadc8cdf498298646f4f6d5962a031547768a87a929

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux493ced1ac47c48bb86d9d4e8e87df8592be85a0e to < 607e68c1b7c5a30c795571be1906d716e989a644, 493ced1ac47c48bb86d9d4e8e87df8592be85a0e to < c11d7c56c2076ee9cd72004f1976fe0734df2ae9, 493ced1ac47c48bb86d9d4e8e87df8592be85a0e to < b5062fc2150614c9ea8a611c2e0cb6e047ebfa3a, 493ced1ac47c48bb86d9d4e8e87df8592be85a0e to < b299121e7453d23faddf464087dff513a495b4fc, 493ced1ac47c48bb86d9d4e8e87df8592be85a0e to < f7c9f8e3607440fe39300efbaf46cf7b5eecb23f, 493ced1ac47c48bb86d9d4e8e87df8592be85a0e to < b3b5a037d520afe3d5276e653bc0ff516bbda34c, 493ced1ac47c48bb86d9d4e8e87df8592be85a0e to < 8650db85b4259d2885d2a80fbc2317ce24194133, 493ced1ac47c48bb86d9d4e8e87df8592be85a0e to < 21ec92774d1536f71bdc90b0e3d052eff99cf093, 5.3—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/607e68c1b7c5a30c795571be1906d716e989a644
git.kernel.orghttps://git.kernel.org/stable/c/c11d7c56c2076ee9cd72004f1976fe0734df2ae9
git.kernel.orghttps://git.kernel.org/stable/c/b5062fc2150614c9ea8a611c2e0cb6e047ebfa3a
git.kernel.orghttps://git.kernel.org/stable/c/b299121e7453d23faddf464087dff513a495b4fc
git.kernel.orghttps://git.kernel.org/stable/c/f7c9f8e3607440fe39300efbaf46cf7b5eecb23f
git.kernel.orghttps://git.kernel.org/stable/c/b3b5a037d520afe3d5276e653bc0ff516bbda34c
git.kernel.orghttps://git.kernel.org/stable/c/8650db85b4259d2885d2a80fbc2317ce24194133
git.kernel.orghttps://git.kernel.org/stable/c/21ec92774d1536f71bdc90b0e3d052eff99cf093
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html

01 Record index

CVE-2026-23300

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-23300

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References