CVE-2023-32665

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

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

Score 5.5 from GitHub Security Advisory published 2023-09-14. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated
5.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (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: 0.4%CVSS: 5.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

A flaw was found in GLib. GVariant deserialization is vulnerable to an exponential blowup issue where a crafted GVariant can cause excessive processing, leading to denial of service.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
41
EG Risk 41/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (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.
EPSS PROB
0.4%
EPSS %ILE
31st
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

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

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (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

September 14, 2023

Last Modified

October 15, 2026

Advisory Details (7)

Auto-updated Oct 14, 2026
Patch available. Sources: redhat.
Web pageMentions a patch (unverified)

SSA-398330

https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Web page

GLib: Multiple Vulnerabilities (GLSA 202311-18) — Gentoo security

https://security.gentoo.org/glsa/202311-18
Web pageMentions a patch (unverified)

[SECURITY] [DLA 3583-1] glib2.0 security update

https://lists.debian.org/debian-lts-announce/2023/09/msg00030.html
Web page

(CVE-2023-32665) GVariant deserialisation does not match spec for non-normal data (#2121) · Issues · GNOME / GLib · GitLab

https://gitlab.gnome.org/GNOME/glib/-/issues/2121
Red HatMentions a patch (unverified)

2211827 – (CVE-2023-32665) CVE-2023-32665 glib: GVariant deserialisation does not match spec for non-normal data

Affected: Red Hat Enterprise Linux 9

https://bugzilla.redhat.com/show_bug.cgi?id=2211827
Red HatMentions a patch (unverified)

CVE-2023-32665 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2023-32665

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibglib2.0-dev-bin (2.74.3-0ubuntu1.2) @ kinetic2026-05-24ubuntu
ubuntulibglib2.0-tests (2.48.2-0ubuntu4.8+esm3) @ xenial2026-05-24ubuntu
redhatmingw-glib2-0:2.78.0-1.el92024-04-30redhat
redhatglib2-0:2.68.4-11.el92023-11-07redhat

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

(5 across 5 ecosystems)
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.58.3-2, 2.58.3-2+deb10u1, 2.58.3-2+deb10u2, 2.58.3-2+deb10u3, 2.58.3-2+deb10u4
  • every version up to 2.58.3-2+deb10u5: fixed in 2.58.3-2+deb10u5
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.66.8-1
  • every version up to 2.66.8-1+deb11u1: fixed in 2.66.8-1+deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.0—
  • every version up to 2.74.4-1: fixed in 2.74.4-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.0—
  • every version up to 2.74.4-1: fixed in 2.74.4-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.0—
  • every version up to 2.74.4-1: fixed in 2.74.4-1
—

Weakness Classification(2)

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

Additional Vendor Advisories

(2)

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 8× in last 7d / 37× 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 95 of 205 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. 5 repeat rows among the latest 100 are merged into the row they repeat. The 110 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  2. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  3. 2026-10-20 16:29 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  4. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  5. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  6. 2026-10-18 08:00 UTCEG score recompute
  7. 2026-10-17 16:29 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  8. 2026-10-16 16:35 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-15 16:29 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  10. 2026-10-15 00:29 UTCVendor advisory
  11. 2026-10-15 00:28 UTCGHSA enrichmentGHSA-c9xj-rf55-c64g · GitHub CVSS 5.5
  12. 2026-10-14 23:56 UTCEG score recompute
  13. 2026-10-14 23:56 UTCVendor advisory
  14. 2026-10-14 23:55 UTCGHSA enrichmentGHSA-c9xj-rf55-c64g · GitHub CVSS 5.5
  15. 2026-10-14 16:29 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  16. 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  17. 2026-10-13 01:24 UTCOSV refresh
  18. 2026-10-12 18:26 UTCEG score recompute
  19. 2026-10-12 16:30 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  20. 2026-10-11 21:52 UTCEG score recompute
  21. 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  22. 2026-10-10 19:57 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  23. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  24. 2026-10-08 17:06 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  25. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.4% · 30th percentile
Show 70 more
  1. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  2. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  3. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  4. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  5. 2026-09-30 16:23 UTCEG score recompute
  6. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  7. 2026-09-29 15:16 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  8. 2026-09-27 13:42 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  9. 2026-09-26 15:55 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  10. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  11. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  12. 2026-09-23 13:45 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  13. 2026-09-22 23:32 UTCOSV refresh
  14. 2026-09-22 14:45 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  15. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  16. 2026-09-16 14:05 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-09-13 16:44 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  18. 2026-09-12 14:58 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  19. 2026-09-11 14:50 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  21. 2026-09-08 21:57 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  22. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  23. 2026-09-06 13:45 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  24. 2026-09-05 15:26 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  25. 2026-09-04 13:58 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  26. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  27. 2026-09-03 18:16 UTCOSV refresh
  28. 2026-09-02 14:09 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  29. 2026-09-01 13:51 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  30. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  31. 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  32. 2026-08-28 21:38 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  33. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  34. 2026-08-26 14:43 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  35. 2026-08-25 13:46 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  36. 2026-08-24 14:14 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  37. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  38. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  39. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  40. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  41. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  42. 2026-08-17 13:45 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  43. 2026-08-17 07:31 UTCOSV refresh
  44. 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  45. 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  46. 2026-08-15 01:28 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  47. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  48. 2026-08-12 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  49. 2026-08-11 13:39 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  50. 2026-08-09 13:44 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  51. 2026-08-08 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  52. 2026-08-07 16:24 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  53. 2026-08-06 13:44 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  54. 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  55. 2026-08-04 15:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  56. 2026-08-04 10:35 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  57. 2026-08-03 10:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  58. 2026-08-02 02:25 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  59. 2026-08-02 02:06 UTCOSV refresh
  60. 2026-08-01 04:13 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  61. 2026-07-30 16:26 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  62. 2026-07-30 01:28 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  63. 2026-07-28 15:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  64. 2026-07-27 14:10 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  65. 2026-07-26 14:52 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  66. 2026-07-25 14:16 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  67. 2026-07-24 14:16 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  68. 2026-07-23 14:16 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  69. 2026-07-23 02:23 UTCEG score recompute
  70. 2026-07-22 23:10 UTCEG score recompute

Frequently asked(5)

What is CVE-2023-32665?
CVE-2023-32665 is a medium-severity vulnerability; its CVE record was published on September 14, 2023. A flaw was found in GLib. GVariant deserialization is vulnerable to an exponential blowup issue where a crafted GVariant can cause excessive processing, leading to denial of service.
When was CVE-2023-32665 made public?
CVE-2023-32665 was made public on December 14, 2022: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on September 14, 2023. EchelonGraph's copy of the record carries a last-modified date of October 15, 2026; the record at its source may have been updated since.
Is CVE-2023-32665 actively exploited?
CVE-2023-32665 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (31st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-32665?
CVE-2023-32665 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2023-32665?
A fix for CVE-2023-32665 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2023-32665 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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