Quick answers
- Is CVE-2026-25658 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-25658 being exploited in the wild.
- How severe is CVE-2026-25658?
- Informational severity, with a CVSS score of 7.1, published 5 June 2026.
- Which products and versions are affected?
- Ericsson Packet Core Gateway prior to 1.30.
- Is there a fix for CVE-2026-25658?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-25658 attacked?
- It is attacked from the adjacent network, in a network appliance.
- Am I affected by CVE-2026-25658?
- Check whether you run Ericsson Packet Core Gateway at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A vulnerability classified as Improper Handling of Missing Values (CWE-230) exists in Ericsson Packet Core Gateway (PCG) before version 1.30. The flaw is triggered when the gateway processes specially crafted messages missing expected values, leading to system crashes or service degradation. The attack vector is defined as 'Adjacent' (AV:A), meaning the attacker must be on the same local network or subnetwork as the gateway. While the system automatically recovers from crashes once the attack ceases, a persistent attacker can maintain a denial-of-service state. The issue is resolved in PCG version 1.30.
Affected products
- Ericsson Packet Core Gateway (PCG) prior to 1.30
Timeline
- 2026-06-05: disclosed
- 2026-06-05: advisory