PatchTheCVECVE-2018-5202: SKCertService 2.5.5 and earlier contains a vulnerability that could allow remote attacker to execute arbitrary
CVE-2018-5202 is a high-severity flaw (CVSS 7.8) affecting skcertservice. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
SKCertService 2.5.5 and earlier contains a vulnerability that could allow remote attacker to execute arbitrary code. This vulnerability exists due to the way .dll files are loaded by SKCertService. It allows an attacker to load a .dll of the attacker's choosing that could execute arbitrary code without the user's knowledge.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.5% (top 25%) |
| CISA exploited list | No |
| Published | 2018-12-21 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2018-5202?
skcertservice: upgrade to newer than 2.5.5. Exact commands for each OS are on this page.
Is CVE-2018-5202 being exploited?
CVE-2018-5202 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2018-5202 affect?
CVE-2018-5202 affects skcertservice. Severity is high (CVSS 7.8). SKCertService 2.5.5 and earlier contains a vulnerability that could allow remote attacker to execute arbitrary code. This vulnerability exists due to the way .dll files are loaded by SKCertService. It allows an attacker to load a .dll of th
How urgent is CVE-2018-5202?
Priority 46/100. High severity