CVE-2021-45082

Exp

An issue was discovered in Cobbler before 3.3.1. In the templar.py file, the function check_for_invalid_imports can allow Cheetah code to import Python modules via the "#from MODULE import" substring. (Only lines beginning with #import are blocked.)

Published: 2022-02-18 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-45082 is rated High Exploit Risk (60.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.50%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2021-45082

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-45082

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.04% 0.50% +0.45%
2 2025-11-21 0.15% 0.04% -0.11%
3 2025-11-18 — 0.15% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-45082

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2021-45082

GitHub Security Advisory for CVE-2021-45082

OS Trackers for CVE-2021-45082

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2021-45082
suse high — https://www.suse.com/security/cve/CVE-2021-45082/
ubuntu low CVE-2021-45082 low priority: Ubuntu including 1 source packages (cobbler), 3 status rows across 3 suites (trusty, upstream, xenial): released 2, ignored 1. https://ubuntu.com/security/CVE-2021-45082

Affected software / configurations for CVE-2021-45082

Vendor Product Version Raw CPE
cobbler_project cobbler < 3.3.1 cpe:2.3:a:cobbler_project:cobbler:*:*:*:*:*:*:*:*
opensuse factory — cpe:2.3:a:opensuse:factory:-:*:*:*:*:*:*:*
opensuse backports sle-15 cpe:2.3:o:opensuse:backports:sle-15:sp3:*:*:*:*:*:*
opensuse backports sle-15 cpe:2.3:o:opensuse:backports:sle-15:sp4:*:*:*:*:*:*
suse linux_enterprise_server 11 cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:*:*:*
suse linux_enterprise_server 12 cpe:2.3:o:suse:linux_enterprise_server:12:-:*:*:*:*:*:*
suse linux_enterprise_server 15 cpe:2.3:o:suse:linux_enterprise_server:15:sp2:*:*:*:*:*:*
suse linux_enterprise_server 15 cpe:2.3:o:suse:linux_enterprise_server:15:sp3:*:*:*:*:*:*
fedoraproject fedora 34 cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
fedoraproject fedora 35 cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
fedoraproject fedora 36 cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

References for CVE-2021-45082

cvelogic Threat Intelligence