There are two denial of service vulnerabilities on some Huawei smartphones.
There are two denial of service vulnerabilities on some Huawei smartphones. An attacker may send specially crafted TD-SCDMA messages from a rogue base station to the affected devices. Due to insufficient input validation of two values when parsing the messages, successful exploit may cause device abnormal. This is 1 out of 2 vulnerabilities. Different than CVE-2020-5303. Affected products are: ALP-AL00B: earlier than 9.1.0.333(C00E333R2P1T8) ALP-L09: earlier than 9.1.0.300(C432E4R1P9T8) ALP-L29: earlier than 9.1.0.315(C636E5R1P13T8) BLA-L29C: earlier than 9.1.0.321(C636E4R1P14T8), earlier than 9.1.0.330(C432E6R1P12T8), earlier than 9.1.0.302(C635E4R1P13T8) Berkeley-AL20: earlier than 9.1.0.333(C00E333R2P1T8) Berkeley-L09: earlier than 9.1.0.350(C10E3R1P14T8), earlier than 9.1.0.351(C432E5R1P13T8), earlier than 9.1.0.350(C636E4R1P13T8) Charlotte-L09C: earlier than 9.1.0.311(C185E4R1P11T8), earlier than 9.1.0.345(C432E8R1P11T8) Charlotte-L29C: earlier than 9.1.0.325(C185E4R1P11T8), earlier than 9.1.0.335(C636E3R1P13T8), earlier than 9.1.0.345(C432E8R1P11T8), earlier than 9.1.0.336(C605E3R1P12T8) Columbia-AL10B: earlier than 9.1.0.333(C00E333R1P1T8) Columbia-L29D: earlier than 9.1.0.350(C461E3R1P11T8), earlier than 9.1.0.350(C185E3R1P12T8), earlier than 9.1.0.350(C10E5R1P14T8), earlier than 9.1.0.351(C432E5R1P13T8) Cornell-AL00A: earlier than 9.1.0.333(C00E333R1P1T8) Cornell-L29A: earlier than 9.1.0.328(C185E1R1P9T8), earlier than 9.1.0.328(C432E1R1P9T8), earlier than 9.1.0.330(C461E1R1P9T8), earlier than 9.1.0.328(C636E2R1P12T8) Emily-L09C: earlier than 9.1.0.336(C605E4R1P12T8), earlier than 9.1.0.311(C185E2R1P12T8), earlier than 9.1.0.345(C432E10R1P12T8) Emily-L29C: earlier than 9.1.0.311(C605E2R1P12T8), earlier than 9.1.0.311(C636E7R1P13T8), earlier than 9.1.0.311(C432E7R1P11T8) Ever-L29B: earlier than 9.1.0.311(C185E3R3P1), earlier than 9.1.0.310(C636E3R2P1), earlier than 9.1.0.310(C432E3R1P12) HUAWEI Mate 20: earlier than 9.1.0.131(C00E131R3P1) HUAWEI Mate 20 Pro: earlier than 9.1.0.310(C185E10R2P1) HUAWEI Mate 20 RS: earlier than 9.1.0.135(C786E133R3P1) HUAWEI Mate 20 X: earlier than 9.1.0.135(C00E133R2P1) HUAWEI P20: earlier than 9.1.0.333(C00E333R1P1T8) HUAWEI P20 Pro: earlier than 9.1.0.333(C00E333R1P1T8) HUAWEI P30: earlier than 9.1.0.193 HUAWEI P30 Pro: earlier than 9.1.0.186(C00E180R2P1) HUAWEI Y9 2019: earlier than 9.1.0.220(C605E3R1P1T8) HUAWEI nova lite 3: earlier than 9.1.0.305(C635E8R2P2) Honor 10 Lite: earlier than 9.1.0.283(C605E8R2P2) Honor 8X: earlier than 9.1.0.221(C461E2R1P1T8) Honor View 20: earlier than 9.1.0.238(C432E1R3P1) Jackman-L22: earlier than 9.1.0.247(C636E2R4P1T8) Paris-L21B: earlier than 9.1.0.331(C432E1R1P2T8) Paris-L21MEB: earlier than 9.1.0.331(C185E4R1P3T8) Paris-L29B: earlier than 9.1.0.331(C636E1R1P3T8) Sydney-AL00: earlier than 9.1.0.212(C00E62R1P7T8) Sydney-L21: earlier than 9.1.0.215(C432E1R1P1T8), earlier than 9.1.0.213(C185E1R1P1T8) Sydney-L21BR: earlier than 9.1.0.213(C185E1R1P2T8) Sydney-L22: earlier than 9.1.0.258(C636E1R1P1T8) Sydney-L22BR: earlier than 9.1.0.258(C636E1R1P1T8) SydneyM-AL00: earlier than 9.1.0.228(C00E78R1P7T8) SydneyM-L01: earlier than 9.1.0.215(C782E2R1P1T8), earlier than 9.1.0.213(C185E1R1P1T8), earlier than 9.1.0.270(C432E3R1P1T8) SydneyM-L03: earlier than 9.1.0.217(C605E1R1P1T8) SydneyM-L21: earlier than 9.1.0.221(C461E1R1P1T8), earlier than 9.1.0.215(C432E4R1P1T8) SydneyM-L22: earlier than 9.1.0.259(C185E1R1P2T8), earlier than 9.1.0.220(C635E1R1P2T8), earlier than 9.1.0.216(C569E1R1P1T8) SydneyM-L23: earlier than 9.1.0.226(C605E2R1P1T8) Yale-L21A: earlier than 9.1.0.154(C432E2R3P2), earlier than 9.1.0.154(C461E2R2P1), earlier than 9.1.0.154(C636E2R2P1) Honor 20: earlier than 9.1.0.152(C00E150R5P1) Honor Magic2: earlier than 10.0.0.187 Honor V20: earlier than 9.1.0.234(C00E234R4P3)
- Published
- Apr 27, 2020
- Updated
- Jun 16, 2026
- EPSS
- 0.3% · 23th percentile
- CWE
- CWE-20
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Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 21 / 40 · 5.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
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.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| huawei | alp-al00b firmware | cpe:2.3:o:huawei:alp-al00b_firmware |
| huawei | alp-al00b | cpe:2.3:h:huawei:alp-al00b |
| huawei | alp-l09 firmware | cpe:2.3:o:huawei:alp-l09_firmware |
| huawei | alp-l09 | cpe:2.3:h:huawei:alp-l09 |
| huawei | alp-l29 firmware | cpe:2.3:o:huawei:alp-l29_firmware |
| huawei | alp-l29 | cpe:2.3:h:huawei:alp-l29 |
| huawei | bla-l29c firmware | cpe:2.3:o:huawei:bla-l29c_firmware |
| huawei | bla-l29c | cpe:2.3:h:huawei:bla-l29c |
| huawei | berkeley-al20 firmware | cpe:2.3:o:huawei:berkeley-al20_firmware |
| huawei | berkeley-al20 | cpe:2.3:h:huawei:berkeley-al20 |
| huawei | berkeley-l09 firmware | cpe:2.3:o:huawei:berkeley-l09_firmware |
| huawei | berkeley-l09 | cpe:2.3:h:huawei:berkeley-l09 |
and 82 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- huawei alp-al00b firmwarebefore 9.1.0.333\(c00e333r2p1t8\)
- huawei alp-l09 firmwarebefore 9.1.0.300\(c432e4r1p9t8\)
- huawei alp-l29 firmwarebefore 9.1.0.315\(c636e5r1p13t8\)
- huawei berkeley-al20 firmwarebefore 9.1.0.333\(c00e333r2p1t8\)
- huawei berkeley-l09 firmwarebefore 9.1.0.351\(c432e5r1p13t8\)
- huawei berkeley-l09 firmwarebefore 9.1.0.350\(c10e3r1p14t8\)
- huawei berkeley-l09 firmwarebefore 9.1.0.350\(c636e4r1p13t8\)
- huawei bla-l29c firmwarebefore 9.1.0.321\(c636e4r1p14t8\)
- huawei bla-l29c firmwarebefore 9.1.0.330\(c432e6r1p12t8\)
- huawei bla-l29c firmwarebefore 9.1.0.302\(c635e4r1p13t8\)
- huawei charlotte-l09c firmwarebefore 9.1.0.311\(c185e4r1p11t8\)
- huawei charlotte-l09c firmwarebefore 9.1.0.345\(c432e8r1p11t8\)
- huawei charlotte-l29c firmwarebefore 9.1.0.325\(c185e4r1p11t8\)
- huawei charlotte-l29c firmwarebefore 9.1.0.336\(c605e3r1p12t8\)
- huawei charlotte-l29c firmwarebefore 9.1.0.335\(c636e3r1p13t8\)
- huawei charlotte-l29c firmwarebefore 9.1.0.345\(c432e8r1p11t8\)
- huawei columbia-al10b firmwarebefore 9.1.0.333\(c00e333r1p1t8\)
- huawei columbia-l29d firmwarebefore 9.1.0.350\(c185e3r1p12t8\)
- huawei columbia-l29d firmwarebefore 9.1.0.350\(c461e3r1p11t8\)
- huawei columbia-l29d firmwarebefore 9.1.0.350\(c10e5r1p14t8\)
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 ALP-AL00B
- Versions earlier than 9.1.0.333(C00E333R2P1T8)affected
Huawei ALP-L09
- Versions earlier than 9.1.0.300(C432E4R1P9T8)affected
Huawei ALP-L29
- Versions earlier than 9.1.0.315(C636E5R1P13T8)affected
Huawei Berkeley-AL20
- Versions earlier than 9.1.0.333(C00E333R2P1T8)affected
Huawei Berkeley-L09
- Versions earlier than 9.1.0.350(C10E3R1P14T8), Versions earlier than 9.1.0.351(C432E5R1P13T8), Versions earlier than 9.1.0.350(C636E4R1P13T8)affected
Huawei BLA-L29C
- Versions earlier than 9.1.0.321(C636E4R1P14T8), Versions earlier than 9.1.0.330(C432E6R1P12T8), Versions earlier than 9.1.0.302(C635E4R1P13T8)affected
Huawei Charlotte-L09C
- Versions earlier than 9.1.0.311(C185E4R1P11T8), Versions earlier than 9.1.0.345(C432E8R1P11T8)affected
Huawei Charlotte-L29C
- Versions earlier than 9.1.0.325(C185E4R1P11T8), Versions earlier than 9.1.0.335(C636E3R1P13T8), Versions earlier than 9.1.0.345(C432E8R1P11T8), Versions earlier than 9.1.0.336(C605E3R1P12T8)affected
Huawei Columbia-AL10B
- Versions earlier than 9.1.0.333(C00E333R1P1T8)affected
Huawei Columbia-L29D
- Versions earlier than 9.1.0.350(C461E3R1P11T8), Versions earlier than 9.1.0.350(C185E3R1P12T8), Versions earlier than 9.1.0.350(C10E5R1P14T8), Versions earlier than 9.1.0.351(C432E5R1P13T8)affected
Huawei Cornell-AL00A
- Versions earlier than 9.1.0.333(C00E333R1P1T8)affected
Huawei Cornell-L29A
- Versions earlier than 9.1.0.328(C185E1R1P9T8), Versions earlier than 9.1.0.328(C432E1R1P9T8), Versions earlier than 9.1.0.330(C461E1R1P9T8), Versions earlier than 9.1.0.328(C636E2R1P12T8)affected
Same product
huawei: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-7910Some Huawei smartphones ALP-AL00B 8.0.0.118D(C00), ALP-TL00B 8.0.0.118D(C01), BLA-AL00B 8.0.0.118D(C00), BLA-L09C 8.0.0.127(C432), 8.0.0.12827Monitor
- CVE-2019-5303There are two denial of service vulnerabilities on some Huawei smartphones.21Monitor
- CVE-2019-5235Some Huawei smart phones have a null pointer dereference vulnerability.21Monitor
- CVE-2019-19412Huawei smart phones have a Factory Reset Protection (FRP) bypass security vulnerability.18Monitor
- CVE-2018-7911Some Huawei smart phones ALP-AL00B 8.0.0.106(C00), 8.0.0.113(SP2C00), 8.0.0.113(SP3C00), 8.0.0.113(SP7C00), 8.0.0.118(C00), 8.0.0.120(SP2C0018Monitor
- CVE-2018-7901RCS module in Huawei ALP-AL00B smart phones with software versions earlier than 8.0.0.129, BLA-AL00B smart phones with software versions ear17Monitor
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 on the same network segment 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
- Adjacent
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-20 · Improper Input ValidationCVSS vector
CVSS:3.1/AV:A/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.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
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.