CVE-2021-40323: cobbler_project cobbler Improper Control of Generation of Code
Vulnerability summary
CVE-2021-40323 is a critical (CVSS 9.8) Improper Control of Generation of Code vulnerability in cobbler_project cobbler. EPSS estimates a 86.83% chance of exploitation in the next 30 days, higher than 99.7% of scored vulnerabilities.
Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 87% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 04-10-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Cobbler before 3.3.0 allows log poisoning, and resultant Remote Code Execution, via an XMLRPC method that logs to the logfile for template injection.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · PypiEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
86.83%
Chance of exploitation in the next 30 days
Percentile
100%
Versus all other CVEs
30-day change
No change 0.00 pp
From 86.83% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Cobbler_project1 product
- cobbler≤ 3.3.0
PyPI1 product
- cobbler< d8f60bbf14a838c8c8a1dba98086b223e35fe70a | < 3.3.0
Ubuntu1 product
- cobbler< 2.4.1-0ubuntu2+esm1
3 vendors · 3 products
References
11 links- github.com/cobbler/cobbler/commit/d8f60bbf14a838c8c8a1dba98086b223e35fe70aX Refsource MISCWEBFIXPatchThird Party Advisory
- github.com/cobbler/cobblerPACKAGE