CVE-2025-65882
CVE-2025-65882 is a critical-severity vulnerability in Openmptcprouter with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (43rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-202318
- Weakness: CWE-78
- Affected product: Openmptcprouter
- Published:
- Last modified:
Description
An issue was discovered in openmptcprouter thru 0.64 in file common/package/utils/sys-upgrade-helper/src/tools/sysupgrade.c in function create_xor_ipad_opad allowing attackers to potentially write arbitrary files or execute arbitrary commands.
Frequently asked questions
- What is CVE-2025-65882?
- An issue was discovered in openmptcprouter thru 0.64 in file common/package/utils/sys-upgrade-helper/src/tools/sysupgrade.c in function create_xor_ipad_opad allowing attackers to potentially write arbitrary files or execute arbitrary commands.
- How severe is CVE-2025-65882?
- CVE-2025-65882 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-65882 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-65882?
- CVE-2025-65882 affects Openmptcprouter. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-65882?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2025-65882 have an EU (EUVD) identifier?
- Yes. CVE-2025-65882 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202318.
- When was CVE-2025-65882 published?
- CVE-2025-65882 was published on 2025-12-09 and last updated on 2026-07-05.
References
- https://gist.github.com/AradCohen/939ee50d60c4d2bd555a364615a5ab9c
- https://github.com/Ysurac/openmptcprouter/commit/09393d1c41a227bea7d5b85c0a06221b1302b25f
EU advisories (EUVD)
Affected products (1)
- cpe:2.3:a:openmptcprouter:openmptcprouter:*:*:*:*:*:*:*:*
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