There is a digital signature verification bypass vulnerability in AR1200, AR1200-S, AR150, AR160, AR200, AR2200, AR2200-S, AR3200, SRG1300,
There is a digital signature verification bypass vulnerability in AR1200, AR1200-S, AR150, AR160, AR200, AR2200, AR2200-S, AR3200, SRG1300, SRG2300 and SRG3300 Huawei routers. The vulnerability is due to the affected software improperly verifying digital signatures for the software image in the affected device. A local attacker with high privilege may exploit the vulnerability to bypass integrity checks for software images and install a malicious software image on the affected device.
- Published
- Jun 4, 2019
- Updated
- Jun 16, 2026
- EPSS
- 0.2% · 7th percentile
- CWE
- CWE-347
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Report tools
Action score
26
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.7 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| huawei | ar1200 firmware | cpe:2.3:o:huawei:ar1200_firmware |
| huawei | ar1200e | cpe:2.3:h:huawei:ar1200e |
| huawei | ar1220c | cpe:2.3:h:huawei:ar1220c |
| huawei | ar1220ev | cpe:2.3:h:huawei:ar1220ev |
| huawei | ar1220evw | cpe:2.3:h:huawei:ar1220evw |
| huawei | ar1200-s firmware | cpe:2.3:o:huawei:ar1200-s_firmware |
| huawei | ar1220f-s | cpe:2.3:h:huawei:ar1220f-s |
| huawei | ar150 firmware | cpe:2.3:o:huawei:ar150_firmware |
| huawei | ar158evw | cpe:2.3:h:huawei:ar158evw |
| huawei | ar160 firmware | cpe:2.3:o:huawei:ar160_firmware |
| huawei | ar161 | cpe:2.3:h:huawei:ar161 |
| huawei | ar161ew | cpe:2.3:h:huawei:ar161ew |
and 41 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- huawei ar1200 firmwarev200r007c00
- huawei ar1200 firmwarev200r008c20
- huawei ar1200 firmwarev200r008c50
- huawei ar1200 firmwarev200r009c00
- huawei ar1200 firmwarev200r010c00
- huawei ar1200-s firmwarev200r007c00
- huawei ar1200-s firmwarev200r008c20
- huawei ar1200-s firmwarev200r008c50
- huawei ar1200-s firmwarev200r009c00
- huawei ar1200-s firmwarev200r010c00
- huawei ar150 firmwarev200r007c00
- huawei ar150 firmwarev200r008c20
- huawei ar150 firmwarev200r008c50
- huawei ar150 firmwarev200r009c00
- huawei ar150 firmwarev200r010c00
- huawei ar160 firmwarev200r007c00
- huawei ar160 firmwarev200r008c20
- huawei ar160 firmwarev200r008c50
- huawei ar160 firmwarev200r009c00
- huawei ar160 firmwarev200r010c00
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 AR1200, AR1200-S, AR150, AR160, AR200, AR2200, AR2200-S, AR3200, SRG1300, SRG2300, SRG3300
- AR150 V200R010C00, AR160 V200R007C00, AR1200 V200R008C50, AR1200 V200R009C00, AR1200 V200R010C00, AR1200-S V200R007C00, AR1200-S V200R008C20, AR1200-S V200R008C50, AR1200-S V200R009C00, AR1200-S V200R010C00, AR150 V200R007C00, AR150 V200R008C20 … (+5)affected
Same product
huawei: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-7920Huawei AR1200 V200R006C10SPC300, AR160 V200R006C10SPC300, AR200 V200R006C10SPC300, AR2200 V200R006C10SPC300, AR3200 V200R006C10SPC300 device30Monitor
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
- Someone with local access to the system can trigger it.
- Administrator privileges are required.
- No user action is required.
- 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-347 · Improper Verification of Cryptographic SignatureCVSS vector
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Root cause
The verifier takes the algorithm to verify with from the token’s own header. Untrusted data ends up deciding its own verification rule.
The bug in code
The whole CWE-347 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
const claims = jwt.verify(token, publicKey);Fixed
const claims = jwt.verify(token, publicKey, { algorithms: ["RS256"], issuer: "https://id.example.com", audience: "portal",});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)
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.