CVE-2025-55271: HCL Aftermarket DPC is affected by HTTP Response Splitting vulnerability where in depending on how the web app

Routine

LOW 3.1DOWNGRADE

CVE-2025-55271 is a low-severity flaw (CVSS 3.1) affecting aftermarket cloud. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HCL Aftermarket DPC is affected by HTTP Response Splitting vulnerability where in depending on how the web application handles the split response, an attacker may be able to execute arbitrary commands or inject harmful content into the response..

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	3.1 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-113
Published	2026-03-26
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

2026-03-26 13:16 UTCPublished CVE record published
2026-06-17 09:41 UTCUpdated Record last modified

hcltech aftermarket cloud DOWNGRADE

Affected: 1.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

apt-cache policy aftermarket-cloud || rpm -q aftermarket-cloud || aftermarket-cloud --version

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison aftermarket-cloud sudo apt install aftermarket-cloud=<VERSION_BEFORE_1.0.0> sudo apt-mark hold aftermarket-cloud

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

dnf --showduplicates list aftermarket-cloud sudo dnf downgrade aftermarket-cloud-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add aftermarket-cloud

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-2025-55271?

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

Is CVE-2025-55271 being exploited?

CVE-2025-55271 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-2025-55271 affect?

CVE-2025-55271 affects aftermarket cloud. Severity is low (CVSS 3.1). HCL Aftermarket DPC is affected by HTTP Response Splitting vulnerability where in depending on how the web application handles the split response, an attacker may be able to execute arbitrary commands or inject harmful content into the resp

How urgent is CVE-2025-55271?

Priority 17/100. No elevated risk signals yet.

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CVE-2025-55275 LOW 3.7 DOWNGRADE HCL Aftermarket DPC is affected by Admin Session Concurrency vulnerability using which an attacker can exploit
CVE-2025-55274 LOW 2.6 DOWNGRADE HCL Aftermarket DPC is affected by Cross-Origin Resource Sharing vulnerability
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References

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