CVE-2020-35450: Gobby 0.4.11 allows a NULL pointer dereference in the D-Bus handler for certain set_language calls.

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2020-35450 is a high-severity flaw (CVSS 7.5) affecting gobby. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Gobby 0.4.11 allows a NULL pointer dereference in the D-Bus handler for certain set_language calls.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-476
Published	2020-12-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gobby project

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

Am I affected?

Timeline

2020-12-26 05:15 UTCPublished CVE record published
2026-06-17 03:13 UTCUpdated Record last modified

gobby project gobby DOWNGRADE

Affected: 0.4.11

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.4.11

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.4.11 (Debian / Ubuntu)

apt-cache madison gobby sudo apt install gobby=<VERSION_BEFORE_0.4.11> sudo apt-mark hold gobby

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

dnf --showduplicates list gobby sudo dnf downgrade gobby-<VERSION_BEFORE_0.4.11> sudo dnf versionlock add gobby

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-2020-35450?

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

Is CVE-2020-35450 being exploited?

CVE-2020-35450 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-2020-35450 affect?

CVE-2020-35450 affects gobby. Severity is high (CVSS 7.5). Gobby 0.4.11 allows a NULL pointer dereference in the D-Bus handler for certain set_language calls.

How urgent is CVE-2020-35450?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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