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Fencer Vulns
critical 9.8

CVE-2021-3342 json

EPrints 3.4.2 allows remote attackers to read arbitrary files and possibly execute commands via crafted LaTeX input to a cgi/latex2png?late…

published 2021-03-01 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26673

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.2%
EPSS 4.2% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

EPrints 3.4.2 allows remote attackers to read arbitrary files and possibly execute commands via crafted LaTeX input to a cgi/latex2png?latex= URI.

Patch / fix

Exploit prediction

4.18% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/grymer/CVE/blob/master/eprints_security_review.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.