Ericsson Packet Core Controller (PCC) - Improper Handling of Syntactically Invalid Structure Vulnerability

published 2026-04-01 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-55516

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits: 0; none known

Ericsson Packet Core Controller (PCC) versions prior to 1.38 contain a vulnerability where an attacker sending a large volume of specially crafted messages may cause service degradation.

Patch / fix

fixed in 1

Ericsson Packet Core Controller (PCC) 1.38

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 7 mo ago (2026-04-01)

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

Ericsson Packet Core Controller (PCC)

Classification

Weakness

CWE-228 Improper Handling of Syntactically Invalid Structure

References

ericsson.com /en/about-us/security/psirt/CVE-2024-53828
vendor-advisory

Sources

CVE List CVE-2024-53828
NVD CVE-2024-53828

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Summary