What is CVE-2022-47040?

CVE-2022-47040 is a high-severity vulnerability in Askey Rtf3505vw-N1, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2023-01-26.

How severe is CVE-2022-47040?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2022-47040 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Askey Rtf3505vw-N1

CVE-2022-47040

An issue in ASKEY router RTF3505VW-N1 BR_SV_g000_R3505VMN1001_s32_7 allows attackers to escalate privileges via running the tcpdump command after placing a crafted file in the /tmp directory and sending crafted packets through port 80.

Published 2023-01-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (25.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Askey Rtf3505vw-N1
Askey Rtf3505vw-N1 Firmware — versions br_sv_g000_r3505vmn1001_s32_7

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

Public proof-of-concept exploits

References

github.com/leoservalli/Privilege-escalation-ASKEY (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-47040?: CVE-2022-47040 is a high-severity vulnerability in Askey Rtf3505vw-N1, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2023-01-26.
How severe is CVE-2022-47040?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2022-47040 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.