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CVE-2020-8958: Guangzhou 1GE ONU V2801RW 1.9.1-181203 through 2.9.0-181024 and V2804RGW 1.9.1-181203 through 2.9.0-181024 dev

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HIGH 7.2UPGRADEUPGRADE

CVE-2020-8958 is a high-severity flaw (CVSS 7.2) affecting 1ge router wifi onu v2801rw firmware, 1ge\+3fe\+wifi onu v2804rgw firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Guangzhou 1GE ONU V2801RW 1.9.1-181203 through 2.9.0-181024 and V2804RGW 1.9.1-181203 through 2.9.0-181024 devices allow remote attackers to execute arbitrary OS commands via shell metacharacters in the boaform/admin/formPing Dest IP Address field.

Why this priority

  • High severity
  • EPSS top 1%: very likely to be exploited
  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score7.2 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededHigh
User interactionNone
EPSS exploit chance45.7% (top 1%)
CISA exploited listNo
WeaknessCWE-78
Published2020-07-15
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: gpononu

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

gpononu 1ge router wifi onu v2801rw firmware UPGRADE
Affected: >= 1.9.1-181203 and <= 2.9.0-181024
Fixed in: newer than 2.9.0-181024
Safe to downgrade to: a release before 1.9.1-181203
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
gpononu 1ge\+3fe\+wifi onu v2804rgw firmware UPGRADE
Affected: >= 1.9.1-181203 and <= 2.9.0-181024
Fixed in: newer than 2.9.0-181024
Safe to downgrade to: a release before 1.9.1-181203
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-8958?

1ge router wifi onu v2801rw firmware: upgrade to newer than 2.9.0-181024; 1ge\+3fe\+wifi onu v2804rgw firmware: upgrade to newer than 2.9.0-181024. Exact commands for each OS are on this page.

Is CVE-2020-8958 being exploited?

CVE-2020-8958 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-8958 affect?

CVE-2020-8958 affects 1ge router wifi onu v2801rw firmware, 1ge\+3fe\+wifi onu v2804rgw firmware. Severity is high (CVSS 7.2). Guangzhou 1GE ONU V2801RW 1.9.1-181203 through 2.9.0-181024 and V2804RGW 1.9.1-181203 through 2.9.0-181024 devices allow remote attackers to execute arbitrary OS commands via shell metacharacters in the boaform/admin/formPing Dest IP Addres

How urgent is CVE-2020-8958?

Priority 55/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference

Software pages

Wi-Fi vulnerabilities

References

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