CVE-2019-1010022: GNU Libc current is affected by: Mitigation bypass

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2019-1010022 is a critical-severity flaw (CVSS 9.8) affecting glibc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GNU Libc current is affected by: Mitigation bypass. The impact is: Attacker may bypass stack guard protection. The component is: nptl. The attack vector is: Exploit stack buffer overflow vulnerability and use this bypass vulnerability to bypass stack guard. NOTE: Upstream comments indicate "this is being treated as a non-security bug and no real threat.

Why this priority

Critical 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	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.2% (top 12%)
CISA exploited list	No
Weakness	CWE-119
Published	2019-07-15
Last modified	2026-10-14

Publisher (CNA): DWF · Vendor: gnu

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-07-15 04:15 UTCPublished CVE record published
2026-10-14 09:17 UTCUpdated Record last modified

gnu glibc MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Downgrade not recommended

This is a core system component: downgrading can break the OS. Apply the distro update or the vendor mitigation.

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-2019-1010022?

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

Is CVE-2019-1010022 being exploited?

CVE-2019-1010022 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-2019-1010022 affect?

CVE-2019-1010022 affects glibc. Severity is critical (CVSS 9.8). GNU Libc current is affected by: Mitigation bypass. The impact is: Attacker may bypass stack guard protection. The component is: nptl. The attack vector is: Exploit stack buffer overflow vulnerability and use this bypass vulnerability to by

How urgent is CVE-2019-1010022?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

glibc vulnerabilities

Related CVEs

CVE-2023-4813 MEDIUM 5.9 UPGRADE MITIGATE A flaw has been identified in glibc
CVE-2023-25139 CRITICAL 9.8 MITIGATE sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with
CVE-2023-5156 HIGH 7.5 UPGRADE MITIGATE A flaw was found in the GNU C Library
CVE-2023-4911 HIGH 7.8 EXPLOITED MITIGATE MITIGATE GNU C Library Buffer Overflow Vulnerability
CVE-2023-0687 MEDIUM 4.6 UPGRADE A vulnerability was found in GNU C Library 2.38

References

← Back to latest CVEs