CVE-2026-19446
published 2026-08-20CVE-2026-19446: IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 allows a remote unauthenticated attacker can send a crafted UDP packet to a reachable RPC service, resulting in…
PriorityP349high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.03%
61.5th percentile
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 allows a remote unauthenticated attacker can send a crafted UDP packet to a reachable RPC service, resulting in complete system unavailability and requiring an LPAR restart.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ibm | aix | — | — |
| ibm | aix | — | — |
| ibm | aix | 7.2.5 – 7.2.5.212 | — |
| ibm | aix | 7.3.2 – 7.3.2.5 | — |
| ibm | aix | 7.3.3 – 7.3.3.2 | — |
| ibm | aix | 7.3.4 – 7.3.4.1 | — |
| ibm | powervm_vios | — | — |
| ibm | vios | >= 4.1.0 < 4.1.0.50 | 4.1.0.50 |
| ibm | vios | >= 4.1.1.0 < 4.1.1.30 | 4.1.1.30 |
| ibm | vios | >= 4.1.2.0 < 4.1.2.20 | 4.1.2.20 |
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VulDB
IBM AIX/PowerVM VIOS 7.2/7.3 RPC Service resource consumption
vuldb·2026-08-21·CVSS 7.5
CVE-2026-19446 [HIGH] IBM AIX/PowerVM VIOS 7.2/7.3 RPC Service resource consumption
A vulnerability, which was classified as critical, has been found in IBM AIX and PowerVM VIOS 7.2/7.3. Affected by this issue is some unknown functionality of the component RPC Service. Performing a manipulation results in resource consumption.
This vulnerability was named CVE-2026-19446. The attack may be initiated remotely. There is no available exploit.
GHSA
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 allows a remote unauthenticated attacker can send a crafted UDP packet to a reachable RPC service, resulting in complete system unavailability and requiri
ghsa_unreviewed·2026-08-21
CVE-2026-19446 [HIGH] CWE-400 IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 allows a remote unauthenticated attacker can send a crafted UDP packet to a reachable RPC service, resulting in complete system unavailability and requiri
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 allows a remote unauthenticated attacker can send a crafted UDP packet to a reachable RPC service, resulting in complete system unavailability and requiring an LPAR restart.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-08-20
Published