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CVE-2020-9207· NVD / CVE Program· CNA huawei

There is an improper authentication vulnerability in some verisons of Huawei CloudEngine product.

There is an improper authentication vulnerability in some verisons of Huawei CloudEngine product. A module does not verify the input file properly. Attackers can exploit this vulnerability by crafting malicious files to bypass current verification mechanism. This can compromise normal service.

HighCVSS 7.8 · v3.1—No exploit No fix recorded
Published
Dec 29, 2020
Updated
Jun 16, 2026
EPSS
0.6% · 45th percentile
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Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

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.

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Affected systems

VendorProduct
huaweicloudengine 12800 firmware
huaweicloudengine 12800
huaweicloudengine 5800 firmware
huaweicloudengine 5800
huaweicloudengine 6800 firmware
huaweicloudengine 6800
huaweicloudengine 7800 firmware
huaweicloudengine 7800

Affected versions

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

  • huawei cloudengine 12800 firmwarev200r019c00spc800
  • huawei cloudengine 5800 firmwarev200r019c00spc800
  • huawei cloudengine 6800 firmwarev200r005c20spc800
  • huawei cloudengine 6800 firmwarev200r019c00spc800
  • huawei cloudengine 7800 firmwarev200r019c00spc800

Versions reported by the vendor

Affected version ranges reported by the assigning authority (huawei). Independent of NVD's CPE analysis and usually ahead of it.

  • Huawei CloudEngine 12800

    • V200R019C00SPC800affected

  • Huawei CloudEngine 5800

    • V200R019C00SPC800affected

  • Huawei CloudEngine 6800

    • V200R005C20SPC800, V200R019C00SPC800affected

  • Huawei CloudEngine 7800

    • V200R019C00SPC800affected

Same product

huawei: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-22328There is a denial of service vulnerability in some huawei products.
    30Monitor
  • CVE-2021-22332There is a pointer double free vulnerability in some versions of CloudEngine 5800, CloudEngine 6800, CloudEngine 7800 and CloudEngine 12800.
    30Monitor
  • CVE-2021-22393There is a denial of service vulnerability in some versions of CloudEngine 5800, CloudEngine 6800, CloudEngine 7800 and CloudEngine 12800.
    30Monitor
  • CVE-2020-9124There is a memory leak vulnerability in some versions of Huawei CloudEngine product.
    30Monitor
  • CVE-2020-9094There is an out of bound read vulnerability in some verisons of Huawei CloudEngine product.
    30Monitor
  • CVE-2020-1870There is a denial of service vulnerability in some Huawei products.
    30Monitor

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

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

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