CVE-2020-26927: Certain NETGEAR devices are affected by authentication bypass

Q: How do I fix CVE-2020-26927?

ac2100 firmware: upgrade to 1.2.0.62; ac2400 firmware: upgrade to 1.2.0.62; ac2600 firmware: upgrade to 1.2.0.62. Exact commands for each OS are on this page.

Q: Is CVE-2020-26927 being exploited?

CVE-2020-26927 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-26927 affect?

CVE-2020-26927 affects ac2100 firmware, ac2400 firmware, ac2600 firmware. Severity is critical (CVSS 9.4). Certain NETGEAR devices are affected by authentication bypass. This affects D6200 before 1.1.00.40, D7000 before 1.0.1.78, R6020 before 1.0.0.42, R6080 before 1.0.0.42, R6050 before 1.0.1.26, JR6150 before 1.0.1.26, R6120 before 1.0.0.66, R

Q: How urgent is CVE-2020-26927?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.4REMOTEUPGRADEUPGRADEUPGRADE

CVE-2020-26927 is a critical-severity flaw (CVSS 9.4) affecting ac2100 firmware, ac2400 firmware, ac2600 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Certain NETGEAR devices are affected by authentication bypass. This affects D6200 before 1.1.00.40, D7000 before 1.0.1.78, R6020 before 1.0.0.42, R6080 before 1.0.0.42, R6050 before 1.0.1.26, JR6150 before 1.0.1.26, R6120 before 1.0.0.66, R6220 before 1.1.0.100, R6260 before 1.1.0.66, R6700v2 before 1.2.0.62, R6800 before 1.2.0.62, R6900v2 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, AC2600 before 1.2.0.62, R7450 before 1.2.0.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.4 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Published	2020-10-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: netgear

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

Am I affected?

Timeline

2020-10-09 07:15 UTCPublished CVE record published
2026-06-17 03:08 UTCUpdated Record last modified

netgear ac2100 firmware UPGRADE

Affected: < 1.2.0.62

Fixed in: 1.2.0.62

Safe to downgrade to: no unaffected older release

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.

netgear ac2400 firmware UPGRADE

Affected: < 1.2.0.62

Fixed in: 1.2.0.62

Safe to downgrade to: no unaffected older release

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.

netgear ac2600 firmware UPGRADE

Affected: < 1.2.0.62

Fixed in: 1.2.0.62

Safe to downgrade to: no unaffected older release

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.

netgear d6200 firmware UPGRADE

Affected: < 1.1.00.40

Fixed in: 1.1.00.40

Safe to downgrade to: no unaffected older release

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.

netgear d7000 firmware UPGRADE

Affected: < 1.0.1.78

Fixed in: 1.0.1.78

Safe to downgrade to: no unaffected older release

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.

netgear jr6150 firmware UPGRADE

Affected: < 1.0.1.26

Fixed in: 1.0.1.26

Safe to downgrade to: no unaffected older release

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-2020-26927?

ac2100 firmware: upgrade to 1.2.0.62; ac2400 firmware: upgrade to 1.2.0.62; ac2600 firmware: upgrade to 1.2.0.62. Exact commands for each OS are on this page.

Is CVE-2020-26927 being exploited?

CVE-2020-26927 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-2020-26927 affect?

CVE-2020-26927 affects ac2100 firmware, ac2400 firmware, ac2600 firmware. Severity is critical (CVSS 9.4). Certain NETGEAR devices are affected by authentication bypass. This affects D6200 before 1.1.00.40, D7000 before 1.0.1.78, R6020 before 1.0.0.42, R6080 before 1.0.0.42, R6050 before 1.0.1.26, JR6150 before 1.0.1.26, R6120 before 1.0.0.66, R

How urgent is CVE-2020-26927?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Netgear vulnerabilities

Related CVEs

CVE-2021-45644 MEDIUM 6.8 UPGRADE UPGRADE Certain NETGEAR devices are affected by incorrect configuration of security settings
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CVE-2021-45573 HIGH 8.3 UPGRADE UPGRADE Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker
CVE-2021-45534 HIGH 7.8 UPGRADE UPGRADE Certain NETGEAR devices are affected by command injection by an authenticated user
CVE-2021-45511 MEDIUM 6.8 UPGRADE UPGRADE Certain NETGEAR devices are affected by authentication bypass

References

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