DEBIAN-CVE-2026-28532
FRRouting before 10.5.3 contains an integer overflow vulnerability in seven OSPF Traffic Engineering and Segment Routing TLV parser functions where a uint16_t accumulator variable truncates uint32_t 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.
DEBIAN-CVE-2026-28532
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-28532
frr
Source reference: /affected/0/package/name
- Affected versions
- 8.4.2-1
Source reference:
/affected/0/versions8.4.4-1Source reference:
/affected/0/versions8.4.4-1.1~deb12u1Source reference:
/affected/0/versions - Fixed versions
- 8.4.4-1.1~deb12u2
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
frr
Source reference: /affected/1/package/name
- Affected versions
- 10.3-3
Source reference:
/affected/1/versions - Fixed versions
- 10.3-3+deb13u1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
frr
Source reference: /affected/2/package/name
- Affected versions
- 10.3-3
Source reference:
/affected/2/versions10.3-4Source reference:
/affected/2/versions10.3-5Source reference:
/affected/2/versions10.3.1-1Source reference:
/affected/2/versions10.3.1-2Source reference:
/affected/2/versions10.3.1-3Source reference:
/affected/2/versions10.3.1-4Source reference:
/affected/2/versions10.4.0-1Source reference:
/affected/2/versions10.4.1-1Source reference:
/affected/2/versions10.4.1-2Source reference:
/affected/2/versions10.4.1-3Source reference:
/affected/2/versions10.5.0-1Source reference:
/affected/2/versions10.5.0-2Source reference:
/affected/2/versions10.5.1-1Source reference:
/affected/2/versions10.5.1-2Source reference:
/affected/2/versions10.5.1-3Source reference:
/affected/2/versions10.5.2-1Source reference:
/affected/2/versions - Fixed versions
- 10.5.3-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.4.4-1.1~deb12u2"
}
]
}
],
"package": {
"name": "frr",
"purl": "pkg:deb/debian/frr?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"8.4.2-1",
"8.4.4-1",
"8.4.4-1.1~deb12u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-28532.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.3-3+deb13u1"
}
]
}
],
"package": {
"name": "frr",
"purl": "pkg:deb/debian/frr?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"10.3-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-28532.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.5.3-1"
}
]
}
],
"package": {
"name": "frr",
"purl": "pkg:deb/debian/frr?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"10.3-3",
"10.3-4",
"10.3-5",
"10.3.1-1",
"10.3.1-2",
"10.3.1-3",
"10.3.1-4",
"10.4.0-1",
"10.4.1-1",
"10.4.1-2",
"10.4.1-3",
"10.5.0-1",
"10.5.0-2",
"10.5.1-1",
"10.5.1-2",
"10.5.1-3",
"10.5.2-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-28532.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56718 · Revision 1
- Added to Heist Feed
- Publisher date