MHonArc 2.6.16 allows remote attackers to cause a denial of service (CPU consumption) via start tags that are placed within other start tags
MHonArc 2.6.16 allows remote attackers to cause a denial of service (CPU consumption) via start tags that are placed within other start tags, as demonstrated by a <bo<bo<bo<bo<body>dy>dy>dy>dy> sequence, a different vulnerability than CVE-2010-4524.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- Jan 3, 2011
- Updated
- Jun 16, 2026
- EPSS
- 8.8% · 95th percentile
- CWE
- CWE-399
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Report tools
Action score
23
Monitor
Low priority for now.
- CVSS
- 20 / 40 · 5.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 3 / 30 · 8.8%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| mhonarc | mhonarc | cpe:2.3:a:mhonarc:mhonarc |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- mhonarc mhonarc2.6.16
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | mhonarc | before 2.6.18-1 | 2.6.18-1 |
Same product
mhonarc: all recordsOther highest-scoring records for the same primary product.
- CVE-2002-0738MHonArc 2.5.2 and earlier does not properly filter Javascript from archived e-mail messages, which could allow remote attackers to execute s31Monitor
- CVE-2002-1307Cross-site scripting vulnerability (XSS) in MHonArc 2.5.12 and earlier allows remote attackers to insert script or HTML via an email message28Monitor
- CVE-2010-4524Cross-site scripting (XSS) vulnerability in lib/mhtxthtml.pl in MHonArc 2.6.16 allows remote attackers to inject arbitrary web script or HTM18Monitor
- CVE-2002-1388Cross-site scripting (XSS) vulnerability in MHonArc before 2.5.14 allows remote attackers to inject arbitrary HTML into web archive pages vi17Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:mhonarc | 2.6.18-1 · Debian:12 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | dos | 2010-12-21 |
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.
- First PoC-14 d
- Published
- TodaySep 30, 2026+5749 d
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 researchersFinders, 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
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- P
Weakness class (CWE)
CWE-399 · Resource Management ErrorsCVSS vector
AV:N/AC:L/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.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- lists.mandriva.com/security-announce/2011-01/msg00004.php
- savannah.nongnu.org/bugs/?32014
- secunia.com/advisories/42694
- www.mail-archive.com/mhonarc-dev%40mhonarc.org/msg01297.html
- www.vupen.com/english/advisories/2010/3344
- www.vupen.com/english/advisories/2011/0067
- exchange.xforce.ibmcloud.com/vulnerabilities/64656
Vendor advisories and official records. Exploit/PoC links are deliberately left out.