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Fencer Intel
low 2.5

CVE-2021-25755 json

In JetBrains Code With Me before 2020.3, an attacker on the local network, knowing a session ID, could get access to the encrypted traffic.

published 5y ago modified 4mo ago also EUVD-2021-12638

cvss
2.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

In JetBrains Code With Me before 2020.3, an attacker on the local network, knowing a session ID, could get access to the encrypted traffic.

Patch / fix

  • jetbrains code_with_me 2020.3

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Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • jay-from-future.github.io https://jay-from-future.github.io/cve/2021/04/02/code-with-me-cve.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 1.9 AV:L/AC:M/Au:N/C:P/I:N/A:N

References

Sources

Fencer Intel 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.