CVE-2015-5453
MediumPublic exploitWatchguard XCS 9.2 and 10.0 before build 150522 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the id parameter to ADMIN/mailqueue.spl.
Published Jul 8, 2015 · Updated May 6, 2026
Key Facts
Patch immediately- CVE-2015-5453 is a medium-severity vulnerability (CVSS 6.5 v2) affecting Xcs (Watchguard).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 59% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
6.5
AV:N/AC:L/Au:S/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
59%
Higher than 99.0% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2015-5453 brief as a PDF
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Description
Watchguard XCS 9.2 and 10.0 before build 150522 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the id parameter to ADMIN/mailqueue.spl.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| XcsWatchguard | 10.0, 9.2 | n/a |
Timeline
Publicly disclosed
Jul 8, 2015
Last updated
May 6, 2026
Weakness Type
- CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
References
- advisoryhttp://www.watchguard.com/support/release-notes/xcs/10/en-US/EN_Release_Notes_XCS_v10_0_Security_Hotfix/EN_Release_Notes_XCS_v10_0_Security_Hotfix.pdf
- advisoryhttp://www.watchguard.com/support/release-notes/xcs/9/en-US/EN_ReleaseNotes_XCS_9_2_Security_Hotfix/EN_Release_Notes_XCS_v9_2_Security_Hotfix.pdf
- exploithttp://packetstormsecurity.com/files/132498/Watchguard-XCS-10.0-SQL-Injection-Command-Execution.html
- exploithttp://packetstormsecurity.com/files/133721/Watchguard-XCS-Remote-Command-Execution.html
- exploitMSF watchguard_cmd_exec.rb
FAQ
Common Questions.
Watchguard XCS 9.2 and 10.0 before build 150522 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the id parameter to ADMIN/mailqueue.spl.
Affected: Xcs (Watchguard) versions 10.0, 9.2. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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