CVE-2026-28532

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Source
https://cve.org/CVERecord?id=CVE-2026-28532
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28532.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-28532
Downstream
Related
Published
2026-04-30T20:17:51.060Z
Modified
2026-07-08T08:12:26.458467515Z
Severity
  • 6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
FRRouting < 10.5.3 Integer Overflow in OSPF TLV Parser Functions
Details

FRRouting before 10.5.3 contains an integer overflow vulnerability in seven OSPF Traffic Engineering and Segment Routing TLV parser functions where a uint16t accumulator variable truncates uint32t values returned by the TLV_SIZE() macro, causing the loop termination condition to fail while pointer advancement continues unchecked. Attackers with an established OSPF adjacency can send a crafted LS Update packet with a malicious Type 10 or Type 11 Opaque LSA to trigger out-of-bounds memory reads and crash all affected routers in the OSPF area or autonomous system.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28532.json",
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-125",
        "CWE-190"
    ]
}
References

Affected packages

Git / github.com/frrouting/frr

Affected ranges

Type
GIT
Repo
https://github.com/frrouting/frr
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
cd39d029a48a1e58929a7f31e7d61a594c2ecb42
Fixed
f098decf02987fbf1c891766c1516ac832adadfd
Database specific 
{
    "cpe": "cpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "10.5.3"
        }
    ]
}

Affected versions

7.*
7.1_pulled
8.*
8.1-dev
base_10.*
base_10.0
base_10.1
base_10.2
base_10.3
base_10.4
base_10.5
base_10.6
base_7.*
base_7.2
base_7.3
base_7.4
base_7.5
base_7.6
base_8.*
base_8.0
base_8.1
base_8.2
base_8.3
base_8.4
base_8.5
base_9.*
base_9.0
base_9.1
docker/10.*
docker/10.5.1
docker/10.5.2
frr-10.*
frr-10.0-dev
frr-10.2-dev
frr-10.3-dev
frr-10.4-dev
frr-10.5-dev
frr-10.5.0
frr-10.5.1
frr-10.5.2
frr-10.6.0-dev
frr-10.7.0-dev
frr-3.*
frr-3.0-branchpoint
frr-3.1-dev
frr-5.*
frr-5.1-dev
frr-6.*
frr-6.1-dev
frr-7.*
frr-7.1-dev
frr-7.2-dev
frr-7.3-dev
frr-7.4-dev
frr-7.5-dev
frr-7.6-dev
frr-8.*
frr-8.0-dev
frr-8.1-dev
frr-8.1-rc1
frr-8.2-dev
frr-8.3-dev
frr-8.4-dev
frr-8.4-rc
frr-8.5-dev
frr-9.*
frr-9.0-dev
frr-9.1-dev
frr-9.2-dev
Other
reindent-master-after
reindent-master-before

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28532.json"