CVE-2025-52649: HCL AION is affected by a vulnerability where certain identifiers may be predictable in nature

Routine

LOW 1.8UPGRADE

CVE-2025-52649 is a low-severity flaw (CVSS 1.8) affecting aion. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HCL AION is affected by a vulnerability where certain identifiers may be predictable in nature. Predictable identifiers may allow an attacker to infer or guess system-generated values, potentially leading to limited information disclosure or unintended access under specific conditions.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	1.8 (Low)
Attack vector	Local
Attack complexity	High
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.1% (top 97%)
CISA exploited list	No
Weakness	CWE-200
Published	2026-03-16
Last modified	2026-06-17

Publisher (CNA): HCL Software · Vendor: hcltech

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

Am I affected?

Timeline

2026-03-16 15:16 UTCPublished CVE record published
2026-06-17 09:36 UTCUpdated Record last modified

hcltech aion UPGRADE

Affected: >= 2.0.0 and < 2.1.2

Fixed in: 2.1.2

Safe to downgrade to: a release before 2.0.0

1. Check installed version

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

2. UPGRADE to 2.1.2 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade aion

Note

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

3. If no update is available yet, DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)

apt-cache madison aion sudo apt install aion=<VERSION_BEFORE_2.0.0> sudo apt-mark hold aion

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list aion sudo dnf downgrade aion-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add aion

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-2025-52649?

aion: upgrade to 2.1.2. Exact commands for each OS are on this page.

Is CVE-2025-52649 being exploited?

CVE-2025-52649 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-2025-52649 affect?

CVE-2025-52649 affects aion. Severity is low (CVSS 1.8). HCL AION is affected by a vulnerability where certain identifiers may be predictable in nature. Predictable identifiers may allow an attacker to infer or guess system-generated values, potentially leading to limited information disclosure o

How urgent is CVE-2025-52649?

Priority 7/100. No elevated risk signals yet.

Related CVEs

CVE-2025-52641 LOW 2.9 UPGRADE HCL AION is affected by a vulnerability where certain system behaviours may allow exploration of internal file
CVE-2025-52648 MEDIUM 4.8 UPGRADE HCL AION is affected by a vulnerability where offering images are not digitally signed
CVE-2025-52646 LOW 2.2 UPGRADE HCL AION is affected by a vulnerability where certain offering configurations may permit execution of potentia
CVE-2025-52645 LOW 1.9 UPGRADE HCL AION is affected by a vulnerability where model packaging and distribution mechanisms may not include suff
CVE-2025-52644 MEDIUM 5.8 UPGRADE HCL AION is affected by a vulnerability where certain user actions are not adequately audited or logged

References

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