The improper neutralization of special elements in the parameter "host" in the CGI program of Zyxel NWA1123ACv3 firmware version 6.70(ABVT.4
Noroxi assessment
Priority: Plan (action score 42/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 11.4% (FIRST EPSS); higher than 95.9% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- According to the record, no fixed version is available yet.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
The improper neutralization of special elements in the parameter "host" in the CGI program of Zyxel NWA1123ACv3 firmware version 6.70(ABVT.4) and earlier, WAC500 firmware version 6.70(ABVS.4) and earlier, WAX655E firmware version 7.00(ACDO.1) and earlier, WBE530 firmware version 7.00(ACLE.1) and earlier, and USG LITE 60AX firmware version V2.00(ACIP.2) could allow an unauthenticated attacker to execute OS commands by sending a crafted cookie to a vulnerable device.
- Published
- Sep 2, 2024
- Updated
- Jun 17, 2026
- EPSS
- 11.4% · 95th percentile
- CWE
- CWE-78
Report tools
Action score
42
Plan
Add it to your regular patch cycle.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 3 / 30 · 11.4%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · Zyxel
- 9.8
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| zyxel | nwa110ax firmware | cpe:2.3:o:zyxel:nwa110ax_firmware |
| zyxel | nwa110ax | cpe:2.3:h:zyxel:nwa110ax |
| zyxel | nwa1123-ac pro firmware | cpe:2.3:o:zyxel:nwa1123-ac_pro_firmware |
| zyxel | nwa1123-ac pro | cpe:2.3:h:zyxel:nwa1123-ac_pro |
| zyxel | nwa1123acv3 firmware | cpe:2.3:o:zyxel:nwa1123acv3_firmware |
| zyxel | nwa1123acv3 | cpe:2.3:h:zyxel:nwa1123acv3 |
| zyxel | nwa130be firmware | cpe:2.3:o:zyxel:nwa130be_firmware |
| zyxel | nwa130be | cpe:2.3:h:zyxel:nwa130be |
| zyxel | nwa210ax firmware | cpe:2.3:o:zyxel:nwa210ax_firmware |
| zyxel | nwa210ax | cpe:2.3:h:zyxel:nwa210ax |
| zyxel | nwa220ax-6e firmware | cpe:2.3:o:zyxel:nwa220ax-6e_firmware |
| zyxel | nwa220ax-6e | cpe:2.3:h:zyxel:nwa220ax-6e |
and 46 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- zyxel nwa110ax firmwarebefore 7.00\(abtg.2\)
- zyxel nwa1123-ac pro firmwarebefore 6.28\(abhd.3\)
- zyxel nwa1123acv3 firmwarebefore 6.70\(abvt.5\)
- zyxel nwa130be firmwarebefore 7.00\(acil.2\)
- zyxel nwa210ax firmwarebefore 7.00\(abtd.2\)
- zyxel nwa220ax-6e firmwarebefore 7.00\(acco.2\)
- zyxel nwa50ax firmwarebefore 7.00\(abyw.2\)
- zyxel nwa50ax pro firmwarebefore 7.00\(acge.2\)
- zyxel nwa55axe firmwarebefore 7.00\(abzl.2\)
- zyxel nwa90ax firmwarebefore 7.00\(accv.2\)
- zyxel nwa90ax pro firmwarebefore 7.00\(acgf.2\)
- zyxel usg lite 60ax firmwarebefore v2.00\(acip.3\)
- zyxel wac500 firmwarebefore 6.70\(abvs.5\)
- zyxel wac500h firmwarebefore 6.70\(abwa.5\)
- zyxel wac6103d-i firmwarebefore 6.28\(aaxh.3\)
- zyxel wac6502d-s firmwarebefore 6.28\(aase.3\)
- zyxel wac6503d-s firmwarebefore 6.28\(aasf.3\)
- zyxel wac6552d-s firmwarebefore 6.28\(abio.3\)
- zyxel wac6553d-e firmwarebefore 6.28\(aasg.3\)
- zyxel wax300h firmwarebefore 7.00\(achf.2\)
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Zyxel). Independent of NVD's CPE analysis and usually ahead of it.
Zyxel NWA1123ACv3 firmware
- <= 6.70(ABVT.4)affected
Zyxel USG LITE 60AX firmware
- V2.00(ACIP.2)affected
Zyxel WAC500 firmware
- <= 6.70(ABVS.4)affected
Zyxel WAX655E firmware
- <= 7.00(ACDO.1)affected
Zyxel WBE530 firmware
- <= 7.00(ACLE.1)affected
Same product
zyxel: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-45854An improper check for unusual conditions in Zyxel NWA110AX firmware verisons prior to 6.50(ABTG.0)C0, which could allow a LAN attacker to ca17Monitor
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).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-24-1378 · Sep 3, 2024(Zyxel Çoklu Ürün Güvenlik Bildirimi )
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.
- 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
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-secondary
Root cause
User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.
The bug in code
The whole CWE-78 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
const host = req.body.host;exec("ping -c 1 " + host, onResult);Fixed
const host = req.body.host;if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);execFile("ping", ["-c", "1", host], onResult);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)
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Command DelimitersCAPEC-15likelihood: High · High
- Exploiting Multiple Input Interpretation LayersCAPEC-43likelihood: Medium · High
- Argument InjectionCAPEC-6likelihood: High · High
- OS Command InjectionCAPEC-88likelihood: High · High
ATT&CK techniques
—
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.