Answer in brief
CVE-2026-45850 records a Medium severity (CVSS 5.5) vulnerability in ipvs: skip ipv6 extension headers for csum checks. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0bbdd42b7efa66685b6d74701bcde3a596a3a59d <0bf92a90bf05ecafe52e92d5bc15a585021a64ac || >=0bbdd42b7efa66685b6d74701bcde3a596a3a59d <54add3b7d3c154ca89ef5bac2582b0ed1a3a15d5 || >=0bbdd42b7efa66685b6d74701bcde3a596a3a59d <768f665f3685b455ed686370ed7ccb852a125a3b || >=0bbdd42b7efa66685b6d74701bcde3a596a3a59d <9aa7edc1347b98774e5167ca34e5b8aa6083bde7 || >=0bbdd42b7efa66685b6d74701bcde3a596a3a59d <d643c1ec80b70508f54dac12179e36920e2c00de || >=0bbdd42b7efa66685b6d74701bcde3a596a3a59d <cdce1e797addab72393c0dfee31aaca41ef7d937 || >=0bbdd42b7efa66685b6d74701bcde3a596a3a59d <a3ca27762ce8476b4fbf9b2a8f5cb74c38e483e4 || >=0bbdd42b7efa66685b6d74701bcde3a596a3a59d <05cfe9863ef049d98141dc2969eefde72fb07625 | 0bf92a90bf05ecafe52e92d5bc15a585021a64ac, 54add3b7d3c154ca89ef5bac2582b0ed1a3a15d5, 768f665f3685b455ed686370ed7ccb852a125a3b, 9aa7edc1347b98774e5167ca34e5b8aa6083bde7, d643c1ec80b70508f54dac12179e36920e2c00de, cdce1e797addab72393c0dfee31aaca41ef7d937, a3ca27762ce8476b4fbf9b2a8f5cb74c38e483e4, 05cfe9863ef049d98141dc2969eefde72fb07625 |
| Linux/Linuxgeneric | 2.6.28 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
In the Linux kernel, the following vulnerability has been resolved: ipvs: skip ipv6 extension headers for csum checks Protocol checksum validation fails for IPv6 if there are extension headers before the protocol header. iph->len already contains its offset, so use it to fix the problem.
Quoted source text, attributed separately from HOL analysis.