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

Q: How do I fix CVE-2023-42553?

email: upgrade to 6.1.90.4. Exact commands for each OS are on this page.

Q: Is CVE-2023-42553 being exploited?

CVE-2023-42553 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-2023-42553 affect?

CVE-2023-42553 affects email. Severity is medium (CVSS 4.0). Improper authorization verification vulnerability in Samsung Email prior to version 6.1.90.4 allows attackers to read sandbox data of email.

Q: How urgent is CVE-2023-42553?

Priority 22/100. No elevated risk signals yet.

Routine

MEDIUM 4.0UPGRADE

CVE-2023-42553 is a medium-severity flaw (CVSS 4.0) affecting email. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper authorization verification vulnerability in Samsung Email prior to version 6.1.90.4 allows attackers to read sandbox data of email.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.0 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-863
Published	2023-11-07
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

2023-11-07 08:15 UTCPublished CVE record published
2026-06-17 06:24 UTCUpdated Record last modified

samsung email UPGRADE

Affected: < 6.1.90.4

Fixed in: 6.1.90.4

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 6.1.90.4 (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-2023-42553?

email: upgrade to 6.1.90.4. Exact commands for each OS are on this page.

Is CVE-2023-42553 being exploited?

CVE-2023-42553 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-2023-42553 affect?

CVE-2023-42553 affects email. Severity is medium (CVSS 4.0). Improper authorization verification vulnerability in Samsung Email prior to version 6.1.90.4 allows attackers to read sandbox data of email.

How urgent is CVE-2023-42553?

Priority 22/100. No elevated risk signals yet.

Software pages

Samsung vulnerabilities

Related CVEs

CVE-2025-21077 LOW 3.3 UPGRADE Improper input validation in Samsung Email prior to version 6.2.06.0 allows local attackers to launch arbitrar
CVE-2024-34636 MEDIUM 4.0 UPGRADE Use of implicit intent for sensitive communication in Samsung Email prior to version 6.1.94.2 allows local att
CVE-2024-20867 MEDIUM 5.5 UPGRADE Improper privilege management vulnerability in Samsung Email prior to version 6.1.91.14 allows local attackers
CVE-2024-20807 LOW 3.3 UPGRADE Implicit intent hijacking vulnerability in Samsung Email prior to version 6.1.90.16 allows local attacker to g
CVE-2023-30729 HIGH 8.1 UPGRADE Improper Certificate Validation in Samsung Email prior to version 6.1.82.0 allows remote attacker to intercept

References

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