CVE-2025-55618: In Hyundai Navigation App STD5W.EUR.HMC.230516.afa908d, an attacker can inject HTML payloads in the profile na

Routine

HIGH 7.3REMOTEDOWNGRADE

CVE-2025-55618 is a high-severity flaw (CVSS 7.3) affecting navigation. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Hyundai Navigation App STD5W.EUR.HMC.230516.afa908d, an attacker can inject HTML payloads in the profile name field in navigation app which then get rendered.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-08-27
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: hyundai

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-27 20:15 UTCPublished CVE record published
2026-07-05 02:16 UTCUpdated Record last modified

hyundai navigation DOWNGRADE

Affected: std5w.eur.hmc.230516.afa908d

Fixed in: no fixed release known

Safe to downgrade to: a release before std5w.eur.hmc.230516.afa908d

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before std5w.eur.hmc.230516.afa908d (Debian / Ubuntu)

apt-cache madison navigation sudo apt install navigation=<VERSION_BEFORE_std5w.eur.hmc.230516.afa908d> sudo apt-mark hold navigation

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

dnf --showduplicates list navigation sudo dnf downgrade navigation-<VERSION_BEFORE_std5w.eur.hmc.230516.afa908d> sudo dnf versionlock add navigation

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-2025-55618?

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

Is CVE-2025-55618 being exploited?

CVE-2025-55618 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-2025-55618 affect?

CVE-2025-55618 affects navigation. Severity is high (CVSS 7.3). In Hyundai Navigation App STD5W.EUR.HMC.230516.afa908d, an attacker can inject HTML payloads in the profile name field in navigation app which then get rendered.

How urgent is CVE-2025-55618?

Priority 35/100. High severity; Remotely exploitable, no login, no user action

References

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