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CVE-2020-5281

23
FAUCET Score

CVE-2020-5281 is a high-severity vulnerability affecting Perun versions prior to 3.9.1, allowing a VO or group manager to modify LDAP extSource configurations to retrieve all data from Perun LDAP. This unauthenticated vulnerability has a CVSS score of 7.5, indicating a high impact on confidentiality with no integrity or availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.9.1CPE matchmatch criteria
cpe:2.3:a:cesnet:perun:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.2MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.0
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.33%
Probability of exploitation in next 30 days
EPSS Percentile
68.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0133 is in the 48th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / CESNET/perun/commit/ac527bc3225a64208ee5cee59e5918ee360ca039
PatchThird Party Advisory
github.com / CESNET/perun/pull/2635
PatchThird Party Advisory
github.com / CESNET/perun/security/advisories/GHSA-gj88-9q3f-72m3
Third Party Advisory