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CVE-2018-7987· NVD / CVE Program· CNA huawei

There is an out-of-bounds write vulnerability on Huawei P20 smartphones with versions before 8.1.0.171(C00).

There is an out-of-bounds write vulnerability on Huawei P20 smartphones with versions before 8.1.0.171(C00). The software does not handle the response message properly when the user doing certain inquiry operation, an attacker could send crafted message to the device, successful exploit could cause a denial of service condition.

MediumCVSS 5.9 · v3.0—No exploit No fix recorded
Published
Dec 4, 2018
Updated
Jun 16, 2026
EPSS
0.7% · 53th percentile
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Action score

23

Monitor

Low priority for now.

CVSS
23 / 40 · 5.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.7%

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

VendorProduct
huaweip20 firmware
huaweip20

Affected versions

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

  • huawei p20 firmwarebefore 8.1.0.171\(c00\)

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 Technologies Co., Ltd. Huawei P20

    • the versions before 8.1.0.171(C00)affected

Same product

huawei: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-5212There is an improper access control vulnerability in Huawei Share.
    22Monitor
  • CVE-2019-5211The Huawei Share function of P20 phones with versions earlier than Emily-L29C 9.1.0.311 has an improper file management vulnerability.
    22Monitor
  • CVE-2019-5283There is Factory Reset Protection (FRP) bypass security vulnerability in P20 Huawei smart phones versions earlier than Emily-AL00A 9.0.0.167
    18Monitor
  • CVE-2019-5306There is a Factory Reset Protection (FRP) bypass security vulnerability in P20 Huawei smart phones versions before Emily-AL00A 9.0.0.167(C00
    18Monitor
  • CVE-2020-9073Huawei P20 smartphones with versions earlier than 10.0.0.156(C00E156R1P4) have an improper authentication vulnerability.
    9Monitor

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

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

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