CVE-2026-0915

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-01-16. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
48th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

January 15, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Aug 2, 2026
Patch available.
Web page

33802 – (CVE-2026-0915) Uninitialized stack buffer used as DNS query name when net==0 in _nss_dns_getnetbyaddr_r

https://sourceware.org/bugzilla/show_bug.cgi?id=33802
Web page

oss-security - The GNU C Library security advisories update for 2026-01-16 (part 2)

http://www.openwall.com/lists/oss-security/2026/01/16/6

Vendor Advisories for CVE-2026-0915(14)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(11)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcostmanagement/costmanagement-metrics-rhel9-operator:17835391562026-07-15redhat
ubuntunscd (2.23-0ubuntu11.3+esm9) @ xenial2026-05-29ubuntu
redhatglibc-main-2.42-11.1.hum12026-04-09redhat
redhatrhceph/rhceph-8-rhel9:17740028672026-03-24redhat
redhatrhui5/rhua-rhel9:17736701372026-03-18redhat
redhatglibc-0:2.28-251.el8_10.312026-03-17redhat
redhatinsights-proxy/insights-proxy-container-rhel9:17736855092026-03-16redhat
redhatdiscovery/discovery-ui-rhel9:17732730702026-03-12redhat
redhatcostmanagement/costmanagement-metrics-rhel9-operator:17708363492026-02-24redhat
redhatglibc-0:2.34-231.el9_7.102026-02-17redhat
redhatglibc-0:2.39-58.el10_1.72026-01-27redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
glibc2.31-13 ... 2.31-13+deb11u9 (14 versions)
  • every version up to 2.31-13+deb11u14: fixed in 2.31-13+deb11u14
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
glibc2.36-9 ... 2.36-9+deb12u9 (14 versions)
  • every version up to 2.36-9+deb12u14: fixed in 2.36-9+deb12u14
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
glibc2.41-12, 2.41-12+deb13u1
  • every version up to 2.41-12+deb13u2: fixed in 2.41-12+deb13u2
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
glibc2.41-12 ... 2.42-8~hurd.2 (12 versions)
  • every version up to 2.42-8: fixed in 2.42-8
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 12× in last 7d / 27× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 175 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 76 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  2. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  3. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  4. 2026-10-12 16:42 UTCEG score recompute
  5. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  6. 2026-10-11 20:17 UTCEG score recompute
  7. 2026-10-11 18:29 UTCEG score recompute
  8. 2026-10-11 15:03 UTCEG score recompute
  9. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  10. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  12. 2026-10-09 14:58 UTCOSV refresh
  13. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  15. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  16. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  19. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  20. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  21. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  22. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  23. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  24. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  25. 2026-09-19 22:21 UTCOSV refresh
Show 74 more
  1. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  2. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  3. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  4. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  5. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  6. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  7. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  8. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  9. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  10. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  11. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  12. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  13. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  14. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  15. 2026-09-01 02:04 UTCOSV refresh
  16. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  17. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  18. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  19. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  20. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  21. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  22. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  23. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  24. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  25. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  26. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  27. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  28. 2026-08-15 01:50 UTCEG score recompute
  29. 2026-08-15 01:50 UTCVendor advisory
  30. 2026-08-15 01:50 UTCGHSA enrichmentGHSA-xp56-6525-9chf · GitHub severity HIGH · GitHub CVSS 7.5
  31. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  32. 2026-08-14 14:04 UTCEG score recompute
  33. 2026-08-14 14:04 UTCVendor advisory
  34. 2026-08-14 14:04 UTCGHSA enrichmentGHSA-xp56-6525-9chf · GitHub severity HIGH · GitHub CVSS 7.5
  35. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  36. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  37. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  38. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  39. 2026-08-09 19:34 UTCEG score recompute
  40. 2026-08-09 19:34 UTCVendor advisory
  41. 2026-08-09 19:34 UTCGHSA enrichmentGHSA-xp56-6525-9chf · GitHub severity HIGH · GitHub CVSS 7.5
  42. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  43. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  44. 2026-08-08 00:27 UTCEG score recompute
  45. 2026-08-08 00:27 UTCVendor advisory
  46. 2026-08-08 00:27 UTCGHSA enrichmentGHSA-xp56-6525-9chf · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  48. 2026-08-06 05:40 UTCEG score recompute
  49. 2026-08-06 05:40 UTCVendor advisory
  50. 2026-08-06 05:40 UTCGHSA enrichmentGHSA-xp56-6525-9chf · GitHub severity HIGH · GitHub CVSS 7.5
  51. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  52. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  53. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  54. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  55. 2026-08-02 23:14 UTCEG score recompute
  56. 2026-08-02 23:14 UTCVendor advisory
  57. 2026-08-02 23:14 UTCGHSA enrichmentGHSA-xp56-6525-9chf · GitHub severity HIGH · GitHub CVSS 7.5
  58. 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  59. 2026-08-01 04:15 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  60. 2026-07-30 16:27 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  61. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  62. 2026-07-28 15:36 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  63. 2026-07-27 14:13 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  64. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  65. 2026-07-25 14:17 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  66. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  67. 2026-07-23 14:18 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  68. 2026-07-23 09:49 UTCOSV refresh
  69. 2026-07-23 03:04 UTCEG score recompute
  70. 2026-07-22 14:08 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  71. 2026-07-21 15:24 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  72. 2026-07-20 17:08 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  73. 2026-07-19 14:30 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  74. 2026-07-19 02:28 UTCEPSS rescoreEPSS 0.6% · 43rd percentile

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-0915?
CVE-2026-0915 is a high-severity vulnerability; its CVE record was published on January 15, 2026. Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for networks and queries for a zero-valued network in the GNU C Library version 2.0 to version 2.42 can leak stack contents to the configured DNS resolver.
When was the CVE record for CVE-2026-0915 published?
The CVE record for CVE-2026-0915 was published on January 15, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 17, 2026; the record at its source may have been updated since.
Is CVE-2026-0915 actively exploited?
CVE-2026-0915 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (48th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-0915?
CVE-2026-0915 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-0915?
A fix for CVE-2026-0915 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-0915 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-0915

Explore →

Is Your Infrastructure Affected by CVE-2026-0915?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs