Access denial via directory permission changes
Published Jul 27, 2026 · Updated Jul 27, 2026
Path traversal in Configuration Management in Ericsson Packet Core Controller before 1.39 allows attackers to deny access to legitimate users. Ericsson states that traversal can change directory permissions but has not disclosed the affected request, path-processing locus, or validation error. Exploitation requires an adjacent position and high privileges; the resulting permission changes deny legitimate access and interrupt availability.
Summary
What happened
Path traversal in Configuration Management in Ericsson Packet Core Controller before 1.39 allows attackers to deny access to legitimate users. Ericsson states that traversal can change directory permissions but has not disclosed the affected request, path-processing locus, or validation error. Exploitation requires an adjacent position and high privileges; the resulting permission changes deny legitimate access and interrupt availability.
The record
- CVE
- CVE-2025-59181
- Published
- Jul 27, 2026
- Updated
- Jul 27, 2026
- Vendor
- Ericsson
- Product
- Packet Core Controller
- Classifications
- CWE-35, T1222.002
- Attack vector
- adjacent
- Privileges
- admin
Timeline
How it unfolded
- Jul 27, 2026CVE publishedPublication date reported by the CVE source.
- Jul 27, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <1.39 changes=[{"at":"1.39","status":"unaffected"}]
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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