CVE-2026-25255: Exposed dangerous function lead to privilege escalation via gRPC server.

Routine

HIGH 8.8DOWNGRADEDOWNGRADE

CVE-2026-25255 is a high-severity flaw (CVSS 8.8) affecting package manager, software center. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Exposed dangerous function lead to privilege escalation via gRPC server.

Why this priority

High severity

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 100%)
CISA exploited list	No
Weakness	CWE-749
Published	2026-09-22
Last modified	2026-10-06

Publisher (CNA): Qualcomm, Inc. · Vendor: qualcomm

Last updated 2026-10-06 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-22 10:17 UTCPublished CVE record published
2026-10-06 15:34 UTCUpdated Record last modified

qualcomm package manager DOWNGRADE

Affected: 3.0.125.4 · 3.0.126.7 · 3.0.127.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.125.4

1. Check installed version

apt-cache policy package-manager || rpm -q package-manager || package-manager --version

2. No fixed release: DOWNGRADE to a release before 3.0.125.4 (Debian / Ubuntu)

apt-cache madison package-manager sudo apt install package-manager=<VERSION_BEFORE_3.0.125.4> sudo apt-mark hold package-manager

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

dnf --showduplicates list package-manager sudo dnf downgrade package-manager-<VERSION_BEFORE_3.0.125.4> sudo dnf versionlock add package-manager

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.

qualcomm software center DOWNGRADE

Affected: 1.17.1 · 1.19.1 · 1.21.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.17.1

1. Check installed version

apt-cache policy software-center || rpm -q software-center || software-center --version

2. No fixed release: DOWNGRADE to a release before 1.17.1 (Debian / Ubuntu)

apt-cache madison software-center sudo apt install software-center=<VERSION_BEFORE_1.17.1> sudo apt-mark hold software-center

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

dnf --showduplicates list software-center sudo dnf downgrade software-center-<VERSION_BEFORE_1.17.1> sudo dnf versionlock add software-center

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-2026-25255?

package manager: downgrade or apply the listed mitigation; software center: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-25255 being exploited?

CVE-2026-25255 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-2026-25255 affect?

CVE-2026-25255 affects package manager, software center. Severity is high (CVSS 8.8). Exposed dangerous function lead to privilege escalation via gRPC server.

How urgent is CVE-2026-25255?

Priority 31/100. High severity

Software pages

Qualcomm vulnerabilities

References

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