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CVE-2019-9169· NVD / CVE Program· CNA mitre

In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer over-read via an attemp

Noroxi assessment

Priority: Plan (action score 40/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 4.7% (FIRST EPSS); higher than 91.7% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: glibc-benchtests (AlmaLinux:8) 2.28-151.el8; glibc-nss-devel (AlmaLinux:8) 2.28-151.el8; glibc-static (AlmaLinux:8) 2.28-151.el8.
  • Mentioned 3 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Add it to your regular patch cycle. Upgrade to glibc-benchtests (AlmaLinux:8) 2.28-151.el8; glibc-nss-devel (AlmaLinux:8) 2.28-151.el8; glibc-static (AlmaLinux:8) 2.28-151.el8 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer over-read via an attempted case-insensitive regular-expression match.

CriticalCVSS 9.8 · v3.1—No exploit Fix available
Published
Feb 26, 2019
Updated
Oct 14, 2026
EPSS
4.7% · 91th percentile

Report tools

JSON

Action score

40

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 4.7%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2019-9169

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
gnuglibc
netappcloud backup
netappontap select deploy administration utility
netappsteelstore cloud integrated storage
mcafeeweb gateway
canonicalubuntu linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • canonical ubuntu linux16.04
  • canonical ubuntu linux18.04
  • canonical ubuntu linux19.10
  • gnu glibcup to 2.29 inclusive
  • mcafee web gateway7.7.2.0 and later · before 7.7.2.21
  • mcafee web gateway7.8.2.0 and later · before 7.8.2.8
  • mcafee web gateway8.0.0 and later · before 8.1.1
  • netapp cloud backupall versions
  • netapp ontap select deploy administration utilityall versions
  • netapp steelstore cloud integrated storageall versions

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8glibc-benchtestsbefore 2.28-151.el82.28-151.el8
AlmaLinux:8glibc-nss-develbefore 2.28-151.el82.28-151.el8
AlmaLinux:8glibc-staticbefore 2.28-151.el82.28-151.el8
AlmaLinux:8nss_hesiodbefore 2.28-151.el82.28-151.el8
Debian:12glibcbefore 2.28-92.28-9
Red Hat:enterprise_linux:8::appstreamcompat-libpthread-nonsharedbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::appstreamglibc-debuginfobefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::appstreamglibc-debuginfo-commonbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::appstreamglibc-utilsbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibcbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-all-langpacksbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-commonbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-develbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-headersbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-langpack-aabefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-langpack-afbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-langpack-agrbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-langpack-akbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-langpack-ambefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-langpack-anbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-langpack-anpbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-langpack-arbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-langpack-asbefore 0:2.28-151.el80:2.28-151.el8
Red Hat:enterprise_linux:8::baseosglibc-langpack-astbefore 0:2.28-151.el80:2.28-151.el8

+96

Same product

gnu: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-4911Glibc: buffer overflow in ld.so leading to privilege escalationKEV
    80Now
  • CVE-2015-0235Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18, allows context-depen
    68This week
  • CVE-2015-7547Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc
    59Plan

Published before and after this one in the same product

  • ← EarlierCVE-2009-5155Feb 25, 2019 · In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to ca
    31Monitor
  • ← EarlierCVE-2018-20796Feb 25, 2019 · In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demons
    32Monitor
  • Later →CVE-2019-9192Feb 26, 2019 · In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demons
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:glibc-benchtests2.28-151.el8 · AlmaLinux:8Package registry (OSV)
almalinux:glibc-nss-devel2.28-151.el8 · AlmaLinux:8Package registry (OSV)
almalinux:glibc-static2.28-151.el8 · AlmaLinux:8Package registry (OSV)
almalinux:nss_hesiod2.28-151.el8 · AlmaLinux:8Package registry (OSV)
debian:glibc2.28-9 · Debian:12Package registry (OSV)
red hat:compat-libpthread-nonshared0:2.28-151.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:glibc0:2.28-151.el8 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:glibc-all-langpacks0:2.28-151.el8 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:glibc-common0:2.28-151.el8 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:glibc-debuginfo0:2.28-151.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:glibc-debuginfo-common0:2.28-151.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:glibc-devel0:2.28-151.el8 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:glibc-headers0:2.28-151.el8 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:glibc-langpack-aa0:2.28-151.el8 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:glibc-langpack-af0:2.28-151.el8 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:glibc-langpack-agr0:2.28-151.el8 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:glibc-utils0:2.28-151.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
rocky linux:glibc0:2.28-151.el8 · Rocky Linux:8Package registry (OSV)
suse:glibc2.22-100.8.1 · SUSE:Linux Enterprise Desktop 12 SP4Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (9 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records