CVE-2010-0211

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory published 2022-05-02. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Weaponized
9.8EG
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).
  • Public exploit code is available (Exploit-DB, marked verified by Exploit-DB)
CISA-KEV: Not listedEPSS PROB: 28%CVSS: 9.8Exploit: Exploit-DB (verified)Exposed services: Not assessed

A fix is available — apply it.

The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the smr_normalize function, which allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a modrdn call with an RDN string containing invalid UTF-8 sequences, which triggers a free of an invalid, uninitialized pointer in the slap_mods_free function, as demonstrated using the Codenomicon LDAPv3 test suite.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
70
EG Risk 70/100

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)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation65% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 2 (Weaponized): a constant, not a probability.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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
28%
EPSS %ILE
98th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

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 (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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

July 28, 2010

Last Modified

April 29, 2026

Advisory Details (7)

Auto-updated Oct 8, 2026
Patch available.
Web page

6570 – Two OpenLDAP preauth vulnerabilities

http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6570
Web page

OpenLDAP: Multiple vulnerabilities (GLSA 201406-36) — Gentoo security

http://security.gentoo.org/glsa/glsa-201406-36.xml
Web page

Secunia Research & Vulnerability Insights | Flexera

http://secunia.com/advisories/42787
Web page

Secunia Research & Vulnerability Insights | Flexera

http://secunia.com/advisories/40687
Web page

Secunia Research & Vulnerability Insights | Flexera

http://secunia.com/advisories/40677
Web page

Secunia Research & Vulnerability Insights | Flexera

http://secunia.com/advisories/40639

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuslapd (2.4.21-0ubuntu5.2) @ lucid2026-05-20ubuntu
redhatopenldap-0:2.2.13-12.el4_8.32010-07-20redhat
redhatopenldap-0:2.3.43-12.el5_5.12010-07-20redhat

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:11(1)
PackageVulnerable rangeFix by version rangeDependents
openldap—
  • every version up to 2.4.23-1: fixed in 2.4.23-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
openldap—
  • every version up to 2.4.23-1: fixed in 2.4.23-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
openldap—
  • every version up to 2.4.23-1: fixed in 2.4.23-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
openldap—
  • every version up to 2.4.23-1: fixed in 2.4.23-1
—
Debian:5.0(1)
PackageVulnerable rangeFix by version rangeDependents
openldap2.4.11-1, 2.4.11-1+lenny1
  • every version up to 2.4.11-1+lenny2: fixed in 2.4.11-1+lenny2
—

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 20× 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 83 of 131 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. 17 repeat rows among the latest 100 are merged into the row they repeat. The 48 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 01:50 UTCEG score recompute
  2. 2026-10-11 13:38 UTCEPSS rescoreEPSS 28% · 98th percentile
  3. 2026-10-10 19:54 UTCEPSS rescoreEPSS 28% · 98th percentile
  4. 2026-10-09 20:00 UTCEPSS rescoreEPSS 28% · 98th percentile
  5. 2026-10-08 16:33 UTCEPSS rescoreEPSS 28% · 98th percentile
  6. 2026-10-07 23:38 UTCEPSS rescoreEPSS 28% · 98th percentile
  7. 2026-10-06 15:09 UTCEPSS rescoreEPSS 28% · 98th percentile
  8. 2026-10-04 23:16 UTCEPSS rescoreEPSS 28% · 98th percentile
  9. 2026-10-04 09:07 UTCOSV refresh
  10. 2026-10-03 14:20 UTCEPSS rescoreEPSS 28% · 98th percentile
  11. 2026-09-30 14:58 UTCEPSS rescoreEPSS 28% · 98th percentile
  12. 2026-09-29 08:02 UTCEG score recompute
  13. 2026-09-27 13:39 UTCEPSS rescoreEPSS 28% · 98th percentile
  14. 2026-09-26 15:52 UTCEPSS rescoreEPSS 28% · 98th percentile
  15. 2026-09-24 13:57 UTCEPSS rescoreEPSS 28% · 98th percentile
  16. 2026-09-16 13:58 UTCEPSS rescoreEPSS 28% · 98th percentile
  17. 2026-09-15 03:04 UTCEPSS rescoreEPSS 28% · 98th percentile
  18. 2026-09-14 23:14 UTCOSV refresh
  19. 2026-09-13 16:40 UTCEPSS rescoreEPSS 28% · 98th percentile
  20. 2026-09-12 14:54 UTCEPSS rescoreEPSS 28% · 98th percentile
  21. 2026-09-10 09:24 UTCEPSS rescoreEPSS 28% · 98th percentile
  22. 2026-09-06 13:41 UTCEPSS rescoreEPSS 28% · 97th percentile
  23. 2026-09-05 15:22 UTCEPSS rescoreEPSS 28% · 98th percentile
  24. 2026-09-04 13:55 UTCEPSS rescoreEPSS 28% · 97th percentile
  25. 2026-08-28 21:34 UTCEPSS rescoreEPSS 28% · 98th percentile
Show 58 more
  1. 2026-08-26 22:39 UTCOSV refresh
  2. 2026-08-26 14:40 UTCEPSS rescoreEPSS 28% · 97th percentile
  3. 2026-08-25 13:43 UTCEPSS rescoreEPSS 28% · 97th percentile
  4. 2026-08-19 16:58 UTCEPSS rescoreEPSS 28% · 97th percentile
  5. 2026-08-18 13:42 UTCEPSS rescoreEPSS 28% · 97th percentile
  6. 2026-08-16 02:09 UTCEPSS rescoreEPSS 28% · 97th percentile
  7. 2026-08-15 01:25 UTCEPSS rescoreEPSS 28% · 97th percentile
  8. 2026-08-10 13:09 UTCOSV refresh
  9. 2026-08-07 16:21 UTCEPSS rescoreEPSS 28% · 97th percentile
  10. 2026-08-06 13:41 UTCEPSS rescoreEPSS 28% · 97th percentile
  11. 2026-08-05 19:11 UTCEPSS rescoreEPSS 28% · 97th percentile
  12. 2026-08-01 04:10 UTCEPSS rescoreEPSS 28% · 97th percentile
  13. 2026-07-25 14:12 UTCEPSS rescoreEPSS 29% · 97th percentile
  14. 2026-07-25 13:41 UTCOSV refresh
  15. 2026-07-23 14:14 UTCEPSS rescoreEPSS 29% · 97th percentile
  16. 2026-07-23 01:00 UTCEG score recompute
  17. 2026-07-23 00:38 UTCEG score recompute
  18. 2026-07-23 00:05 UTCEG score recompute
  19. 2026-07-22 21:44 UTCEG score recompute
  20. 2026-07-22 14:03 UTCEPSS rescoreEPSS 29% · 97th percentile
  21. 2026-07-21 15:20 UTCEPSS rescoreEPSS 29% · 97th percentile
  22. 2026-07-20 17:03 UTCEPSS rescoreEPSS 29% · 97th percentile
  23. 2026-07-19 02:25 UTCEPSS rescoreEPSS 29% · 97th percentile
  24. 2026-07-18 10:00 UTCEPSS rescoreEPSS 29% · 97th percentile
  25. 2026-07-16 16:58 UTCEPSS rescoreEPSS 29% · 97th percentile
  26. 2026-07-15 16:54 UTCEPSS rescoreEPSS 29% · 97th percentile
  27. 2026-07-13 22:25 UTCEPSS rescoreEPSS 29% · 97th percentile
  28. 2026-07-13 06:08 UTCEPSS rescoreEPSS 29% · 97th percentile
  29. 2026-07-11 08:22 UTCEPSS rescoreEPSS 29% · 97th percentile
  30. 2026-07-08 15:10 UTCEPSS rescoreEPSS 29% · 97th percentile
  31. 2026-07-08 08:27 UTCOSV refresh
  32. 2026-07-06 02:19 UTCEPSS rescoreEPSS 29% · 97th percentile
  33. 2026-07-05 02:26 UTCEPSS rescoreEPSS 29% · 97th percentile
  34. 2026-07-02 14:01 UTCEPSS rescoreEPSS 29% · 97th percentile
  35. 2026-07-01 15:02 UTCEPSS rescoreEPSS 29% · 97th percentile
  36. 2026-06-29 14:02 UTCEPSS rescoreEPSS 29% · 97th percentile
  37. 2026-06-28 04:52 UTCEPSS rescoreEPSS 29% · 97th percentile
  38. 2026-06-27 03:05 UTCEPSS rescoreEPSS 29% · 97th percentile
  39. 2026-06-25 13:46 UTCEPSS rescoreEPSS 29% · 97th percentile
  40. 2026-06-24 14:02 UTCEPSS rescoreEPSS 29% · 97th percentile
  41. 2026-06-23 21:29 UTCEPSS rescoreEPSS 29% · 97th percentile
  42. 2026-06-22 14:22 UTCEPSS rescoreEPSS 29% · 97th percentile
  43. 2026-06-21 14:53 UTCEPSS rescoreEPSS 29% · 97th percentile
  44. 2026-06-21 01:56 UTCEPSS rescoreEPSS 29% · 97th percentile
  45. 2026-06-19 20:23 UTCOSV refresh
  46. 2026-06-18 17:49 UTCEPSS rescoreEPSS 29% · 97th percentile
  47. 2026-06-17 17:49 UTCEPSS rescoreEPSS 29% · 97th percentile
  48. 2026-06-16 17:49 UTCEPSS rescoreEPSS 29% · 97th percentile
  49. 2026-06-15 17:44 UTCEPSS rescoreEPSS 29% · 97th percentile
  50. 2026-06-14 23:14 UTCEPSS rescoreEPSS 43% · 97th percentile
  51. 2026-06-13 22:57 UTCEPSS rescoreEPSS 43% · 97th percentile
  52. 2026-06-12 23:08 UTCEPSS rescoreEPSS 43% · 97th percentile
  53. 2026-06-11 13:56 UTCEPSS rescoreEPSS 43% · 97th percentile
  54. 2026-06-10 22:14 UTCEPSS rescoreEPSS 43% · 97th percentile
  55. 2026-06-10 13:17 UTCEPSS rescoreEPSS 43% · 97th percentile
  56. 2026-06-06 13:44 UTCEPSS rescoreEPSS 43% · 97th percentile
  57. 2026-06-05 22:44 UTCEPSS rescoreEPSS 43% · 97th percentile
  58. 2026-06-05 06:07 UTCEPSS rescoreEPSS 43% · 97th percentile

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 Exploit-DB entry). Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-34348✓ verified
    Published Jul 19, 2010

    OpenLDAP 2.4.22 - 'modrdn' Multiple Vulnerabilities

    Open source ↗

Frequently asked(5)

What is CVE-2010-0211?
CVE-2010-0211 is a critical-severity vulnerability; its CVE record was published on July 28, 2010. The slapmodrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the smrnormalize function, which allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a modrdn call with an RDN string containing…
When was CVE-2010-0211 made public?
CVE-2010-0211 was made public on July 20, 2010: that is the date its CVE record's CNA, CERT/CC, gives for when the vulnerability was made public. The CVE record itself was published on July 28, 2010. EchelonGraph's copy of the record carries a last-modified date of April 29, 2026; the record at its source may have been updated since.
Is CVE-2010-0211 actively exploited?
CVE-2010-0211 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model places it in Tier 2 (Weaponized), which is not evidence of exploitation: Exploit-DB marks a public exploit for it as verified. EchelonGraph does not test whether exploit code works. FIRST EPSS estimates a 28% probability of exploitation in the next 30 days (98th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2010-0211?
CVE-2010-0211 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2010-0211?
A fix for CVE-2010-0211 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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