Multiple unspecified vulnerabilities in DeleGate 9.x before 9.0.6 and 8.x before 8.11.6 allow remote attackers to cause a denial of service
Multiple unspecified vulnerabilities in DeleGate 9.x before 9.0.6 and 8.x before 8.11.6 allow remote attackers to cause a denial of service via crafted DNS responses messages that cause (1) a buffer over-read or (2) infinite recursion, which can trigger a segmentation fault or invalid memory access, as demonstrated by the OUSPG PROTOS DNS test suite.
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
- Apr 27, 2006
- Updated
- Jun 16, 2026
- EPSS
- 2.9% · 86th percentile
- CWE
- —
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Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 20 / 40 · 5.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.9%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| delegate | delegate | cpe:2.3:a:delegate:delegate |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- delegate delegate7.7.0
- delegate delegate7.7.1
- delegate delegate7.8.0
- delegate delegate7.8.1
- delegate delegate7.8.2
- delegate delegate7.9.11
- delegate delegate8.10
- delegate delegate8.10.1
- delegate delegate8.10.2
- delegate delegate8.10.3
- delegate delegate8.10.4
- delegate delegate8.10.5
- delegate delegate8.10.6
- delegate delegate8.11
- delegate delegate8.11.1
- delegate delegate8.11.2
- delegate delegate8.11.3
- delegate delegate8.11.4
- delegate delegate8.11.5
- delegate delegate8.3.3
Same product
delegate: all recordsOther highest-scoring records for the same primary product.
- CVE-2004-2003Buffer overflow in the ssl_prcert function in the SSLway filter (sslway.c) for DeleGate 8.9.2 and earlier allows remote attackers to execute32Monitor
- CVE-2001-1202Cross-site scripting vulnerability in DeleGate 7.7.0 and 7.7.1 does not quote scripting commands within a "403 Forbidden" error page, which 32Monitor
- CVE-2015-7556DeleGate 9.9.13 allows local users to gain privileges as demonstrated by the dgcpnod setuid program.31Monitor
- CVE-2005-0861Multiple buffer overflows in DeleGate before 8.11.1 may allow attackers to cause a denial of service or execute arbitrary code, possibly due31Monitor
- CVE-2002-1781Multiple buffer overflows in DeleGate 7.7.0 through 7.8.1 allow remote attackers to execute arbitrary code, as demonstrated using a long USE31Monitor
- CVE-2005-0036The DNS implementation in DeleGate 8.10.2 and earlier allows remote attackers to cause a denial of service via a compressed DNS packet with 21Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
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.
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)
—
CVSS 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
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- secunia.com/advisories/19750
- securitytracker.com/id?1015991
- www.kb.cert.org/vuls/id/955777
- www.niscc.gov.uk/niscc/docs/br-20060425-00311.html?lang=en
- www.niscc.gov.uk/niscc/docs/re-20060425-00312.pdf?lang=en
- www.securityfocus.com/bid/17691
- www.vupen.com/english/advisories/2006/1505
- www.vupen.com/english/advisories/2006/1506
- exchange.xforce.ibmcloud.com/vulnerabilities/26081
Vendor advisories and official records. Exploit/PoC links are deliberately left out.