CVE-2021-25375: Using predictable index for attachments in Samsung Email prior to version 6.1.41.0 allows remote attackers to

Q: How do I fix CVE-2021-25375?

email: upgrade to 6.1.14.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-25375 being exploited?

CVE-2021-25375 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-25375 affect?

CVE-2021-25375 affects email. Severity is medium (CVSS 6.5). Using predictable index for attachments in Samsung Email prior to version 6.1.41.0 allows remote attackers to get attachments of another emails when users open the malicious attachment.

Q: How urgent is CVE-2021-25375?

Priority 40/100. No elevated risk signals yet.

This month

MEDIUM 6.5UPGRADE

CVE-2021-25375 is a medium-severity flaw (CVSS 6.5) affecting email. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Using predictable index for attachments in Samsung Email prior to version 6.1.41.0 allows remote attackers to get attachments of another emails when users open the malicious attachment.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-200, CWE-330
Published	2021-04-09
Last modified	2026-06-17

Publisher (CNA): Samsung Mobile · Vendor: samsung

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-04-09 18:15 UTCPublished CVE record published
2026-06-17 03:41 UTCUpdated Record last modified

samsung email UPGRADE

Affected: < 6.1.14.0

Fixed in: 6.1.14.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy email || rpm -q email || email --version

2. UPGRADE to 6.1.14.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade email

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade email

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-25375?

email: upgrade to 6.1.14.0. Exact commands for each OS are on this page.

Is CVE-2021-25375 being exploited?

CVE-2021-25375 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-25375 affect?

CVE-2021-25375 affects email. Severity is medium (CVSS 6.5). Using predictable index for attachments in Samsung Email prior to version 6.1.41.0 allows remote attackers to get attachments of another emails when users open the malicious attachment.

How urgent is CVE-2021-25375?

Priority 40/100. No elevated risk signals yet.

Software pages

Samsung vulnerabilities

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CVE-2023-42553 MEDIUM 4.0 UPGRADE Improper authorization verification vulnerability in Samsung Email prior to version 6.1.90.4 allows attackers

References

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