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CVE-2020-13847

25
FAUCET Score

CVE-2020-13847 describes a critical integrity vulnerability in Sylabs Singularity versions 3.0 through 3.5, where the sign and verify commands fail to properly sign metadata within SIF files. This flaw, rated 7.5 HIGH on CVSS, allows an unauthenticated attacker to tamper with container images, potentially leading to integrity compromise without detection. While no active exploitation, public exploit code, or significant community discussion has been observed, the vulnerability poses a substantial risk due to the lack of integrity checks.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0.0, <= 3.5.0CPE matchmatch criteria
cpe:2.3:a:sylabs:singularity:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 23rd percentile among its peer group of 51,485 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

Remediation records are not available for this CVE.

References

lists.opensuse.org / opensuse-security-announce/2020-07/msg00046.html
Broken Link
lists.opensuse.org / opensuse-security-announce/2020-07/msg00059.html
Broken Link
lists.opensuse.org / opensuse-security-announce/2020-09/msg00053.html
Broken Link
github.com / hpcng/singularity/security/advisories/GHSA-m7j2-9565-4h9v
Third Party Advisory
medium.com / sylabs
Third Party Advisory