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CVE-2019-13565· NVD / CVE Program· CNA mitre

An issue was discovered in OpenLDAP 2.x before 2.4.48.

Noroxi assessment

Priority: Monitor (action score 32/100)

  • 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: 5% (FIRST EPSS); higher than 92.2% 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: openldap (Alpine:v3.10) 2.4.48-r0; openldap (Debian:12) 2.4.48+dfsg-1; openldap (Debian:8) 2.4.40+dfsg-1+deb8u5.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to openldap (Alpine:v3.10) 2.4.48-r0; openldap (Debian:12) 2.4.48+dfsg-1; openldap (Debian:8) 2.4.40+dfsg-1+deb8u5 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

An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Jul 26, 2019
Updated
Oct 14, 2026
EPSS
5.0% · 92th percentile
CWE
—

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 5.0%

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-2019-13565

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
openldapopenldap
canonicalubuntu linux
debiandebian linux
opensuseleap
f5traffix signaling delivery controller
applemac os x
oracleblockchain platform
oraclezfs storage appliance kit
oraclesolaris

Affected versions

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

  • apple mac os x10.15 and later · before 10.15.2
  • apple mac os x10.13 and later · before 10.13.6
  • apple mac os x10.14 and later · before 10.14.6
  • apple mac os x10.13.6
  • apple mac os x10.14.6
  • canonical ubuntu linux12.04
  • canonical ubuntu linux14.04
  • canonical ubuntu linux16.04
  • canonical ubuntu linux18.04
  • canonical ubuntu linux19.04
  • debian debian linux8.0
  • f5 traffix signaling delivery controller5.0.0
  • f5 traffix signaling delivery controller5.1.0
  • openldap openldap2.0 and later · up to 2.4.47 inclusive
  • opensuse leap15.0
  • opensuse leap15.1
  • oracle blockchain platformbefore 21.1.2
  • oracle solaris11
  • oracle zfs storage appliance kit8.8

Package-level exposure

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

EcosystemPackageAffected rangeFix
Alpine:v3.10openldapfrom 2.0 · before 2.4.48-r02.4.48-r0
Debian:12openldapbefore 2.4.48+dfsg-12.4.48+dfsg-1
Debian:8openldapbefore 2.4.40+dfsg-1+deb8u52.4.40+dfsg-1+deb8u5
openSUSE:Leap 15.0openldap2before 2.4.46-lp150.13.12.4.46-lp150.13.1
openSUSE:Leap 15.1openldap2before 2.4.46-lp151.10.3.12.4.46-lp151.10.3.1
SUSE:Linux Enterprise Desktop 12 SP4openldap2before 2.4.41-18.63.12.4.41-18.63.1
SUSE:Linux Enterprise Module for Basesystem 15openldap2before 2.4.46-9.19.22.4.46-9.19.2
SUSE:Linux Enterprise Module for Legacy 12openldap2before 2.4.41-18.24.17.12.4.41-18.24.17.1
SUSE:Linux Enterprise Server 11-SECURITYopenldap2-client-openssl1before 2.4.26-0.74.6.12.4.26-0.74.6.1
SUSE:Linux Enterprise Server for SAP Applications 12 SP1openldap2-clientbefore 2.4.41-18.24.17.12.4.41-18.24.17.1

Same product

openldap: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-29155In OpenLDAP 2.x before 2.5.12 and 2.6.x before 2.6.2, a SQL injection vulnerability exists in the experimental back-sql backend to slapd, vi
    58Plan
  • CVE-2020-36228An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate List Exact Assertion processing, r
    55Plan
  • CVE-2020-36221An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exact Assertion processing, result
    55Plan

Published before and after this one in the same product

  • ← EarlierCVE-2017-17740Dec 18, 2017 · contrib/slapd-modules/nops/nops.c in OpenLDAP through 2.4.45, when both the nops module and the memberof overlay are enabled, attempts to fr
    32Monitor
  • ← EarlierCVE-2019-13057Jul 26, 2019 · An issue was discovered in the server in OpenLDAP before 2.4.48.
    20Monitor
  • Later →CVE-2014-8182Jan 2, 2020 · An off-by-one error leading to a crash was discovered in openldap 2.4 when processing DNS SRV messages.
    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
alpine:openldap2.4.48-r0 · Alpine:v3.10Package registry (OSV)
debian:openldap2.4.48+dfsg-1 · Debian:12Package registry (OSV)
opensuse:openldap22.4.46-lp151.10.3.1 · openSUSE:Leap 15.1Package registry (OSV)
suse:openldap22.4.41-18.63.1 · SUSE:Linux Enterprise Desktop 12 SP4Package registry (OSV)
suse:openldap2-client2.4.41-18.24.17.1 · SUSE:Linux Enterprise Server for SAP Applications 12 SP1Package registry (OSV)
suse:openldap2-client-openssl12.4.26-0.74.6.1 · SUSE:Linux Enterprise Server 11-SECURITYPackage 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
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

—

CVSS vector

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

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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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

References

Show all references (16 more)

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

All records