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CVE-2015-0733· NVD / CVE Program· CNA cisco

CRLF injection vulnerability in the HTTP Header Handler in Digital Broadband Delivery System in Cisco Headend System Release allows remote a

CRLF injection vulnerability in the HTTP Header Handler in Digital Broadband Delivery System in Cisco Headend System Release allows remote attackers to inject arbitrary HTTP headers, and conduct HTTP response splitting attacks or cross-site scripting (XSS) attacks, via a crafted request, aka Bug ID CSCur25580.

MediumCVSS 4.3 · v2.0—No exploit No fix recorded
Published
May 30, 2015
Updated
Jun 16, 2026
EPSS
1.5% · 74th percentile
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Action score

17

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.5%

Affected systems

VendorProduct
ciscoheadend digital broadband delivery system

Affected versions

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

  • cisco headend digital broadband delivery systemall versions

Same product

cisco: all records

Other highest-scoring records for the same primary product.

  • CVE-2015-0759Cross-site request forgery (CSRF) vulnerability in Cisco Headend Digital Broadband Delivery System allows remote attackers to hijack the aut
    27Monitor
  • CVE-2015-0745Cisco Headend System Release allows remote attackers to read temporary script files or archive files, and consequently obtain sensitive info
    21Monitor
  • CVE-2015-0743Cisco Headend System Release allows remote attackers to cause a denial of service (DHCP and TFTP outage) via a flood of crafted UDP traffic,
    21Monitor
  • CVE-2015-0724Multiple cross-site scripting (XSS) vulnerabilities in dncs 7.0.0.12 in Cisco Headend Digital Broadband Delivery System allow remote attacke
    17Monitor

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.

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
    P · data or configuration can be modified
    Availability
    none
    Attack complexity
    M
    Confidentiality impact
    None
    Integrity impact
    P
    Availability impact
    None

    Weakness class (CWE)

    CWE-113 · Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

    CVSS vector

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

    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 help

    Change log

    No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

    References

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

    All records