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CVE-2021-40348

26
FAUCET Score

CVE-2021-40348 is a code injection vulnerability affecting Spacewalk 2.10 and derivatives like Uyuni 2021.08. It arises from improper sanitization of configuration filenames in the rhn-config-satellite.pl script, allowing an attacker to append arbitrary code to a root-owned file that is subsequently executed. This vulnerability carries a high CVSS score of 8.8, indicating a critical risk with potential for complete compromise of confidentiality, integrity, and availability, and can be exploited over the network with user interaction. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2021.08CPE matchmatch criteria
cpe:2.3:a:uyuni-project:uyuni:2021.08:*:*:*:*:*:*:*
2.10CPE matchmatch criteria
cpe:2.3:a:spacewalk_project:spacewalk:2.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.74%
Probability of exploitation in next 30 days
EPSS Percentile
75.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0174 is in the 74th percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / uyuni-project/uyuni/commit/790c7388efac6923c5475e01c1ff718dffa9f052
PatchThird Party Advisory
openwall.com / lists/oss-security/2021/10/28/4
ExploitMailing ListPatchThird Party Advisory