The default configuration of the proxy for Cisco Cache Engine and Content Engine allows remote attackers to use HTTPS to make TCP connection
The default configuration of the proxy for Cisco Cache Engine and Content Engine allows remote attackers to use HTTPS to make TCP connections to allowed IP addresses while hiding the actual source IP.
- Published
- Aug 12, 2002
- Updated
- Jun 16, 2026
- EPSS
- 1.6% · 75th percentile
- CWE
- —
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Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.6%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| cisco | content distribution manager 4630 | cpe:2.3:a:cisco:content_distribution_manager_4630 |
| cisco | content distribution manager 4650 | cpe:2.3:a:cisco:content_distribution_manager_4650 |
| cisco | content engine | cpe:2.3:a:cisco:content_engine |
| cisco | enterprise content delivery network software | cpe:2.3:a:cisco:enterprise_content_delivery_network_software |
| cisco | cache engine 505 | cpe:2.3:h:cisco:cache_engine_505 |
| cisco | cache engine 550 | cpe:2.3:h:cisco:cache_engine_550 |
| cisco | cache engine 570 | cpe:2.3:h:cisco:cache_engine_570 |
| cisco | content router 4430 | cpe:2.3:h:cisco:content_router_4430 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- cisco cache engine 5052.4.0
- cisco cache engine 5053.0
- cisco cache engine 550all versions
- cisco cache engine 5502.2.0
- cisco cache engine 5502.4.0
- cisco cache engine 5503.0
- cisco cache engine 5702.2.0
- cisco cache engine 5702.4.0
- cisco cache engine 5703.0
- cisco cache engine 570570
- cisco content distribution manager 4630all versions
- cisco content distribution manager 46304.0
- cisco content distribution manager 46304.1
- cisco content distribution manager 4650all versions
- cisco content distribution manager 46504.0
- cisco content distribution manager 46504.1
- cisco content engine507
- cisco content engine507_2.2.0
- cisco content engine507_3.1
- cisco content engine507_4.0
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
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
—
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/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.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; 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 helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- www.cisco.com/warp/public/707/transparentcache-tcp-relay-vuln-pub.shtml
- www.iss.net/security_center/static/9082.php
- www.securityfocus.com/bid/4751
Vendor advisories and official records. Exploit/PoC links are deliberately left out.