rpc.cgi in Webmin through 1.920 allows authenticated Remote Code Execution via a crafted object name because unserialise_variable makes an eval call. NOTE: the Webmin_Servers_Index documentation states "RPC can be used to run any command or modify any file on a server, which is why access to it must not be granted to un-trusted Webmin users."
CVE-2019-15642
Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 8.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EG Risk
- 60(Track)EG Risk 60/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity88% × 45%Exploitation40% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 98.4%
- KEV
- Not listed
Published
August 26, 2019
Last Modified
November 21, 2024
References (8)
- cve@mitrehttps://doxfer.webmin.com/Webmin/Webmin_Servers_Index
- cve@mitrehttps://github.com/webmin/webmin/blob/ab5e00e41ea1ecc1e24b8f8693f3495a0abb1aed/rpc.cgi#L26-L37
- cve@mitrehttps://github.com/webmin/webmin/commit/df8a43fb4bdc9c858874f72773bcba597ae9432c
- cve@mitrehttps://www.calypt.com/blog/index.php/authenticated-rce-on-webmin/
- af854a3a-2127-422b-91ae-364da2661108https://doxfer.webmin.com/Webmin/Webmin_Servers_Index
- af854a3a-2127-422b-91ae-364da2661108https://github.com/webmin/webmin/blob/ab5e00e41ea1ecc1e24b8f8693f3495a0abb1aed/rpc.cgi#L26-L37
- af854a3a-2127-422b-91ae-364da2661108https://github.com/webmin/webmin/commit/df8a43fb4bdc9c858874f72773bcba597ae9432c
- af854a3a-2127-422b-91ae-364da2661108https://www.calypt.com/blog/index.php/authenticated-rce-on-webmin/
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 37× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-25 14:14 UTCEPSS rescore
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- 2026-07-23 14:15 UTCEPSS rescore
- 2026-07-23 01:40 UTCEG score recompute
- 2026-07-22 22:20 UTCEG score recompute▼ 0.20
- 2026-07-22 14:05 UTCEPSS rescore
- 2026-07-21 15:22 UTCEPSS rescore
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- 2026-07-20 08:04 UTCOSV refresh
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- 2026-07-03 02:35 UTCOSV refresh
- 2026-07-02 16:56 UTCEPSS rescore
- 2026-07-01 15:03 UTCEPSS rescore
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- 2026-06-30 23:20 UTCEPSS rescore
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- 2026-06-25 13:47 UTCEPSS rescore
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- 2026-06-21 01:57 UTCEPSS rescore
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- 2026-06-18 17:50 UTCEPSS rescore
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- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-14 19:43 UTCOSV refresh
- 2026-06-13 22:58 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
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- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:42 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 15:15 UTCEG score recompute
- 2026-05-27 15:15 UTCGHSA enrichment
- 2026-05-27 13:38 UTCEPSS rescore
Publicly available exploits
(2 references)Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoCjas502n/CVE-2019-15642First seen Sep 1, 2019
Webmin Remote Code Execution (authenticated)
Open source ↗ - Nucleihttp/cves/2019/CVE-2019-15642.yamlFirst seen Jan 1, 2019
Webmin < 1.920 - Authenticated Remote Code Execution
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-94
Frequently asked(5)
What is CVE-2019-15642?
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What is the CVSS score of CVE-2019-15642?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2019-15642
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