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CVE-2009-1885· NVD / CVE Program· CNA redhat

Stack consumption vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces C++ 2.7.0 and 2.8.0 allows context-dependent attackers to

Stack consumption vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces C++ 2.7.0 and 2.8.0 allows context-dependent attackers to cause a denial of service (application crash) via vectors involving nested parentheses and invalid byte values in "simply nested DTD structures," as demonstrated by the Codenomicon XML fuzzing framework.

MediumCVSS 4.3 · v2.0—No exploit Fix available
Published
Aug 11, 2009
Updated
Jun 16, 2026
EPSS
5.3% · 92th percentile
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Report tools

JSON

Action score

19

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 5.3%

Affected systems

VendorProduct
apachexerces-c\+\+

Affected versions

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

  • apache xerces-c++2.7.0
  • apache xerces-c++2.8.0

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12xerces-cbefore 3.0.1-23.0.1-2
openSUSE:Tumbleweedxerces-cbefore 3.1.4-1.33.1.4-1.3

Same product

apache: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-12627In Apache Xerces-C XML Parser library before 3.2.1, processing of external DTD paths can result in a null pointer dereference under certain
    42Plan
  • CVE-2016-2099Use-after-free vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces C++ 3.1.3 and earlier allows context-dependent attackers to h
    41Plan
  • CVE-2024-23807Apache Xerces C++: Use-after-free on external DTD scan
    39Monitor
  • CVE-2023-37536HCL BigFix Platform is vulnerable to an integer overflow in xerces-c++ 3.2.3
    35Monitor
  • CVE-2018-1311The Apache Xerces-C 3.0.0 to 3.2.3 XML parser contains a use-after-free error triggered during the scanning of external DTDs.
    35Monitor
  • CVE-2016-4463Stack-based buffer overflow in Apache Xerces-C++ before 3.1.4 allows context-dependent attackers to cause a denial of service via a deeply n
    34Monitor

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
debian:xerces-c3.0.1-2 · Debian:12Package registry (OSV)
opensuse:xerces-c3.1.4-1.3 · openSUSE:TumbleweedPackage 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).

Technical details

Attack conditions

    If successful

    Confidentiality
    none
    Integrity
    none
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    None
    Integrity impact
    None
    Availability impact
    P

    Weakness class (CWE)

    CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVSS vector

    AV:N/AC:M/Au:N/C:N/I:N/A:P

    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.

    ATT&CK techniques

    —

    Noroxi analysis

    No Noroxi analysis for this record yet

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    Change log

    1. Fix✗ → ✓

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    References

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

    All records