What is CVE-2026-25657?

CVE-2026-25657 is a medium-severity vulnerability in Ericsson Packet_core_gateway, classified under CWE-228. CVSS score: 6.5/10. Published 2026-06-05.

How severe is CVE-2026-25657?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Ericsson Packet_core_gateway

CVE-2026-25657

Ericsson Packet Core Gateway (PCG) versions prior to 1.30 contain an Improper Handling of Syntactically Invalid Structure (CWE-228) vulnerability where an attacker continuously sending a specially crafted message can cause service degradat…

EPSS: 0.002 (6.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ericsson Packet_core_gateway
Ericsson Packet Core Gateway (Pcg) — versions 0

Weakness classification (CWE)

CWE-228

References

85b1779b-6ecd-4f52-bcc5-73eac4659dcf (Vendor Advisory)

Frequently asked questions

What is CVE-2026-25657?: CVE-2026-25657 is a medium-severity vulnerability in Ericsson Packet_core_gateway, classified under CWE-228. CVSS score: 6.5/10. Published 2026-06-05.
How severe is CVE-2026-25657?: Medium severity. CVSS v3 base score is 6.5 out of 10.