PatchTheCVECVE-2019-13558: In WebAccess versions 8.4.1 and prior, an exploit executed over the network may cause improper control of gene
CVE-2019-13558 is a critical-severity flaw (CVSS 9.8) affecting webaccess. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
In WebAccess versions 8.4.1 and prior, an exploit executed over the network may cause improper control of generation of code, which may allow remote code execution, data exfiltration, or cause a system crash.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.9% (top 13%) |
| CISA exploited list | No |
| Weakness | CWE-94 |
| Published | 2019-09-18 |
| 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-2019-13558?
webaccess: upgrade to newer than 8.4.1. Exact commands for each OS are on this page.
Is CVE-2019-13558 being exploited?
CVE-2019-13558 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-2019-13558 affect?
CVE-2019-13558 affects webaccess. Severity is critical (CVSS 9.8). In WebAccess versions 8.4.1 and prior, an exploit executed over the network may cause improper control of generation of code, which may allow remote code execution, data exfiltration, or cause a system crash.
How urgent is CVE-2019-13558?
Priority 61/100. Critical severity; Remotely exploitable, no login, no user action
Software pages
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