CVE-2025-6089: A vulnerability has been found in Astun Technology iShare Maps 5.4.0 and classified as problematic

Routine

MEDIUM 4.3DOWNGRADE

CVE-2025-6089 is a medium-severity flaw (CVSS 4.3) affecting ishare maps. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been found in Astun Technology iShare Maps 5.4.0 and classified as problematic. This vulnerability affects unknown code of the file atCheckJS.aspx. The manipulation of the argument ref leads to open redirect. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-601
Published	2025-06-15
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: astuntechnology

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

Am I affected?

Timeline

2025-06-15 13:15 UTCPublished CVE record published
2026-06-17 10:01 UTCUpdated Record last modified

astuntechnology ishare maps DOWNGRADE

Affected: 5.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.4.0

1. Check installed version

apt-cache policy ishare-maps || rpm -q ishare-maps || ishare-maps --version

2. No fixed release: DOWNGRADE to a release before 5.4.0 (Debian / Ubuntu)

apt-cache madison ishare-maps sudo apt install ishare-maps=<VERSION_BEFORE_5.4.0> sudo apt-mark hold ishare-maps

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

dnf --showduplicates list ishare-maps sudo dnf downgrade ishare-maps-<VERSION_BEFORE_5.4.0> sudo dnf versionlock add ishare-maps

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-2025-6089?

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

Is CVE-2025-6089 being exploited?

CVE-2025-6089 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-2025-6089 affect?

CVE-2025-6089 affects ishare maps. Severity is medium (CVSS 4.3). A vulnerability has been found in Astun Technology iShare Maps 5.4.0 and classified as problematic. This vulnerability affects unknown code of the file atCheckJS.aspx. The manipulation of the argument ref leads to open redirect. The attack

How urgent is CVE-2025-6089?

Priority 22/100. No elevated risk signals yet.

Related CVEs

CVE-2025-5378 MEDIUM 4.3 DOWNGRADE A vulnerability classified as problematic has been found in Astun Technology iShare Maps 5.4.0
CVE-2025-5377 MEDIUM 4.3 DOWNGRADE A vulnerability was found in Astun Technology iShare Maps 5.4.0

References

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