The HTTP module in the (1) Branch Intelligent Management System (BIMS) and (2) web management components on Huawei AR routers and S2000, S30
The HTTP module in the (1) Branch Intelligent Management System (BIMS) and (2) web management components on Huawei AR routers and S2000, S3000, S3500, S3900, S5100, S5600, S7800, and S8500 switches does not check whether HTTP data is longer than the value of the Content-Length field, which allows remote HTTP servers to conduct heap-based buffer overflow attacks and execute arbitrary code via a crafted response.
- Published
- Jun 20, 2013
- Updated
- Jun 16, 2026
- EPSS
- 1.7% · 76th percentile
- CWE
- CWE-119
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Report tools
Action score
41
Plan
Add it to your regular patch cycle.
- CVSS
- 40 / 40 · 10.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 1.7%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| huawei | ar 18-1x | cpe:2.3:h:huawei:ar_18-1x |
| huawei | ar 18-2x | cpe:2.3:h:huawei:ar_18-2x |
| huawei | ar 18-3x | cpe:2.3:h:huawei:ar_18-3x |
| huawei | ar 19\/29\/49 | cpe:2.3:h:huawei:ar_19\/29\/49 |
| huawei | ar 28\/46 | cpe:2.3:h:huawei:ar_28\/46 |
| huawei | s2000 | cpe:2.3:h:huawei:s2000 |
| huawei | s2300 | cpe:2.3:h:huawei:s2300 |
| huawei | s2700 | cpe:2.3:h:huawei:s2700 |
| huawei | s3000 | cpe:2.3:h:huawei:s3000 |
| huawei | s3300 | cpe:2.3:h:huawei:s3300 |
| huawei | s3300hi | cpe:2.3:h:huawei:s3300hi |
| huawei | s3500 | cpe:2.3:h:huawei:s3500 |
and 6 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- huawei ar 18-1xup to r0130 inclusive
- huawei ar 18-2xup to r1712 inclusive
- huawei ar 18-3xup to r0118 inclusive
- huawei ar 19/29/49up to r2207 inclusive
- huawei ar 28/46up to r0311 inclusive
- huawei s2000r6305
- huawei s2300r6305
- huawei s2700r6305
- huawei s3000r6305
- huawei s3300r6305
- huawei s3300hir6305
- huawei s3500r6305
- huawei s3700r6305
- huawei s3900r6305
- huawei s5100r6305
- huawei s5600r6305
- huawei s7800r6305
- huawei s8500r1631
- huawei s8500r1632
Same product
huawei: all recordsOther highest-scoring records for the same primary product.
- CVE-2012-6569Stack-based buffer overflow in the HTTP module in the (1) Branch Intelligent Management System (BIMS) and (2) web management components on H38Monitor
- CVE-2012-6571The HTTP module in the (1) Branch Intelligent Management System (BIMS) and (2) web management components on Huawei AR routers and S2000, S3030Monitor
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
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
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.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
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
Vendor advisories and official records. Exploit/PoC links are deliberately left out.