Quick answers
- Is CVE-2026-25659 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-25659 being exploited in the wild.
- How severe is CVE-2026-25659?
- 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-2026-25659?
- 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-2026-25659 attacked?
- It is attacked from the adjacent network, in a network appliance.
- Am I affected by CVE-2026-25659?
- 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
The vulnerability is classified as Improper Handling of Missing Values (CWE-230) within the Ericsson Packet Core Gateway (PCG). It is triggered when the gateway receives specially crafted messages that lack expected values, leading to service instability or crashes. The attack vector is defined as 'Adjacent,' meaning the attacker must be on the same local network or subnet as the gateway. Exploitation results in a denial-of-service (DoS) condition that persists as long as the malicious traffic is being sent; the system reportedly recovers automatically once the attack ceases. This issue is resolved in PCG version 1.30.
Affected products
- Ericsson Packet Core Gateway (PCG) prior to 1.30
Timeline
- 2026-06-05: advisory: Initial disclosure by Ericsson and NVD publication.