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.
CVE-2010-0211
“—” 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.
- Public exploit code is available (Exploit-DB, marked verified by Exploit-DB)
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8CRITICALmedium confidence
- EG Risk
- 70EG 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, 20266570 – Two OpenLDAP preauth vulnerabilities
http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6570OpenLDAP: Multiple vulnerabilities (GLSA 201406-36) — Gentoo security
http://security.gentoo.org/glsa/glsa-201406-36.xmlPatch Availability(3)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| ubuntu | slapd (2.4.21-0ubuntu5.2) @ lucid | 2026-05-20 | ubuntu |
| redhat | openldap-0:2.2.13-12.el4_8.3 | 2010-07-20 | redhat |
| redhat | openldap-0:2.3.43-12.el5_5.1 | 2010-07-20 | redhat |
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)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| openldap | — |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| openldap | — |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| openldap | — |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| openldap | — |
| — |
Debian:5.0(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| openldap | 2.4.11-1, 2.4.11-1+lenny1 |
| — |
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.
- 2026-10-12 01:50 UTCEG score recompute
- 2026-10-11 13:38 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-10-10 19:54 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-10-09 20:00 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-10-08 16:33 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-10-07 23:38 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-10-06 15:09 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-10-04 23:16 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-10-04 09:07 UTCOSV refresh
- 2026-10-03 14:20 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-30 14:58 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-29 08:02 UTCEG score recompute
- 2026-09-27 13:39 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-26 15:52 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-24 13:57 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-16 13:58 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-15 03:04 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-14 23:14 UTCOSV refresh
- 2026-09-13 16:40 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-12 14:54 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-10 09:24 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-06 13:41 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-09-05 15:22 UTCEPSS rescoreEPSS 28% · 98th percentile
- 2026-09-04 13:55 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-08-28 21:34 UTCEPSS rescoreEPSS 28% · 98th percentile
Show 58 moreShow fewer
- 2026-08-26 22:39 UTCOSV refresh
- 2026-08-26 14:40 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-08-25 13:43 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-08-19 16:58 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-08-18 13:42 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-08-16 02:09 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-08-15 01:25 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-08-10 13:09 UTCOSV refresh
- 2026-08-07 16:21 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-08-06 13:41 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-08-05 19:11 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-08-01 04:10 UTCEPSS rescoreEPSS 28% · 97th percentile
- 2026-07-25 14:12 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-25 13:41 UTCOSV refresh
- 2026-07-23 14:14 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-23 01:00 UTCEG score recompute
- 2026-07-23 00:38 UTCEG score recompute
- 2026-07-23 00:05 UTCEG score recompute
- 2026-07-22 21:44 UTCEG score recompute
- 2026-07-22 14:03 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-21 15:20 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-20 17:03 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-19 02:25 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-18 10:00 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-16 16:58 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-15 16:54 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-13 22:25 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-13 06:08 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-11 08:22 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-08 15:10 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-08 08:27 UTCOSV refresh
- 2026-07-06 02:19 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-05 02:26 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-02 14:01 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-07-01 15:02 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-29 14:02 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-28 04:52 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-27 03:05 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-25 13:46 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-24 14:02 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-23 21:29 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-22 14:22 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-21 14:53 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-21 01:56 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-19 20:23 UTCOSV refresh
- 2026-06-18 17:49 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-17 17:49 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-16 17:49 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-15 17:44 UTCEPSS rescoreEPSS 29% · 97th percentile
- 2026-06-14 23:14 UTCEPSS rescoreEPSS 43% · 97th percentile
- 2026-06-13 22:57 UTCEPSS rescoreEPSS 43% · 97th percentile
- 2026-06-12 23:08 UTCEPSS rescoreEPSS 43% · 97th percentile
- 2026-06-11 13:56 UTCEPSS rescoreEPSS 43% · 97th percentile
- 2026-06-10 22:14 UTCEPSS rescoreEPSS 43% · 97th percentile
- 2026-06-10 13:17 UTCEPSS rescoreEPSS 43% · 97th percentile
- 2026-06-06 13:44 UTCEPSS rescoreEPSS 43% · 97th percentile
- 2026-06-05 22:44 UTCEPSS rescoreEPSS 43% · 97th percentile
- 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✓ verifiedPublished Jul 19, 2010
OpenLDAP 2.4.22 - 'modrdn' Multiple Vulnerabilities
Open source ↗
Related CVEs(same product + same vendor)
Same product
10 shownDebian:5.0:openldap · Debian:11:openldap
- CVE-2010-0212EG 5.0EPSS p92MEDIUM
- CVE-2008-2952EG 5.0EPSS p96MEDIUM
- CVE-2009-3767EG 4.3MEDIUM
- CVE-2022-29155EG 9.8EPSS p99CRITICAL
- CVE-2020-36228NVD 7.5EG 9.0EPSS p100CRITICAL
- CVE-2020-36221NVD 7.5EG 9.0EPSS p100CRITICAL
- CVE-2020-36227NVD 7.5EG 8.8EPSS p100HIGH
- CVE-2020-36222NVD 7.5EG 8.8EPSS p100HIGH
- CVE-2021-27212NVD 7.5EG 8.4EPSS p99HIGH
- CVE-2023-2953EG 7.5HIGH
Same vendor
2 shownredhat:RHSA-2010:0542 · redhat:RHSA-2010:0543
Frequently asked(5)
What is CVE-2010-0211?
When was CVE-2010-0211 made public?
Is CVE-2010-0211 actively exploited?
What is the CVSS score of CVE-2010-0211?
How do I remediate CVE-2010-0211?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2010-0211
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