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Fencer Vulns
low 3.1

CVE-2021-25376 json

An improper synchronization logic in Samsung Email prior to version 6.1.41.0 can leak messages in certain mailbox in plain text when STARTT…

published 2021-04-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-12272

cvss
3.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

An improper synchronization logic in Samsung Email prior to version 6.1.41.0 can leak messages in certain mailbox in plain text when STARTTLS negotiation is failed.

Patch / fix

  • Samsung Mobile Samsung Email 6.1.41.0

Exploit prediction

0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.1 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • Samsung Mobile Samsung Email

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-662 Improper Synchronization

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.