CVE-2023-32521: A path traversal exists in a specific service dll of Trend Micro Mobile Security (Enterprise) 9.8 SP5 which co

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CRITICAL 9.1REMOTEDOWNGRADE

CVE-2023-32521 is a critical-severity flaw (CVSS 9.1) affecting mobile security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A path traversal exists in a specific service dll of Trend Micro Mobile Security (Enterprise) 9.8 SP5 which could allow an unauthenticated remote attacker to delete arbitrary files.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	66.8% (top 1%)
CISA exploited list	No
Weakness	CWE-22
Published	2023-06-26
Last modified	2026-06-17

Publisher (CNA): Trend Micro, Inc. · Vendor: trendmicro

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

Am I affected?

Timeline

2023-06-26 22:15 UTCPublished CVE record published
2026-06-17 05:59 UTCUpdated Record last modified

trendmicro mobile security DOWNGRADE

Affected: 9.8 sp5

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.8

1. Check installed version

apt-cache policy mobile-security || rpm -q mobile-security || mobile-security --version

2. No fixed release: DOWNGRADE to a release before 9.8 (Debian / Ubuntu)

apt-cache madison mobile-security sudo apt install mobile-security=<VERSION_BEFORE_9.8> sudo apt-mark hold mobile-security

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mobile-security sudo dnf downgrade mobile-security-<VERSION_BEFORE_9.8> sudo dnf versionlock add mobile-security

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2023-32521?

mobile security: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-32521 being exploited?

CVE-2023-32521 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-2023-32521 affect?

CVE-2023-32521 affects mobile security. Severity is critical (CVSS 9.1). A path traversal exists in a specific service dll of Trend Micro Mobile Security (Enterprise) 9.8 SP5 which could allow an unauthenticated remote attacker to delete arbitrary files.

How urgent is CVE-2023-32521?

Priority 67/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

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References

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