CVE-2026-3088 | Unauthenticated users can disrupt router operation

Unauthenticated users on the local network can cause the router to become unavailable by sending specially crafted requests.

Published: 2026-06-09 Last update: 2026-06-18 Assigner: a2826606-91e7-4eb6-899e-8484bd4575d5 Source: a2826606-91e7-4eb6-899e-8484bd4575d5
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-3088 is rated Low Risk (29.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.36%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-3088

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-19 0.29% 0.36% +0.07%
2 2026-06-15 0.02% 0.29% +0.27%
3 2026-06-10 — 0.02% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-3088

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.9 4.0 MEDIUM
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:D/RE:L/U:Amber Click to expand
Attack vector (AV:A)
Attacker has to be on an adjacent/local network segment.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:N)
No confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:N)
No integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:H)
High availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.
Exploit maturity (threat) (E:U)
Unreported: no public PoC, no reported exploitation, and no known simplification tools.
Confidentiality requirement (CR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Integrity requirement (IR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Availability requirement (AR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Modified attack vector (MAV:X)
Not defined: scoring uses the Base Attack Vector (AV).
Modified attack complexity (MAC:X)
Not defined: scoring uses the Base Attack Complexity (AC).
Modified attack requirements (MAT:X)
Not defined: scoring uses the Base Attack Requirements (AT).
Modified privileges required (MPR:X)
Not defined: scoring uses the Base Privileges Required (PR).
Modified user interaction (MUI:X)
Not defined: scoring uses the Base User Interaction (UI).
Modified vulnerable system confidentiality impact (MVC:X)
Not defined: scoring uses the Base VC metric.
Modified vulnerable system integrity impact (MVI:X)
Not defined: scoring uses the Base VI metric.
Modified vulnerable system availability impact (MVA:X)
Not defined: scoring uses the Base VA metric.
Modified subsequent system confidentiality impact (MSC:X)
Not defined: scoring uses the Base SC metric.
Modified subsequent system integrity impact (MSI:X)
Not defined: scoring uses the Base SI metric.
Modified subsequent system availability impact (MSA:X)
Not defined: scoring uses the Base SA metric.
Safety (supplemental) (S:X)
Not evaluated.
Automatable (supplemental) (AU:X)
Not evaluated.
Recovery (supplemental) (R:X)
Not evaluated.
Value density (supplemental) (V:D)
Diffuse: a single exploit event controls relatively limited resources (e.g., one client).
Vulnerability response effort (supplemental) (RE:L)
Low/trivial response effort (documentation, simple configuration, low-touch guidance).
Provider urgency (supplemental) (U:AMBER)
Amber: provider rates moderate urgency.
 — — a2826606-91e7-4eb6-899e-8484bd4575d5
6.5 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]

Weakness enumeration for CVE-2026-3088

GitHub Security Advisory for CVE-2026-3088

GHSA-r4pc-3chm-q76v · Severity: medium — Unauthenticated users on the local network can cause the router to become unavailable by sending...

Affected software / configurations for CVE-2026-3088

Vendor Product Version Raw CPE
netgear rbe970_firmware < 9.10.1.4 cpe:2.3:o:netgear:rbe970_firmware:*:*:*:*:*:*:*:*
netgear rbe971_firmware < 9.10.1.4 cpe:2.3:o:netgear:rbe971_firmware:*:*:*:*:*:*:*:*
netgear rbr860_firmware < 7.2.7.15 cpe:2.3:o:netgear:rbr860_firmware:*:*:*:*:*:*:*:*
netgear rbre950_firmware < 7.2.7.15 cpe:2.3:o:netgear:rbre950_firmware:*:*:*:*:*:*:*:*
netgear rbre960_firmware < 7.2.7.15 cpe:2.3:o:netgear:rbre960_firmware:*:*:*:*:*:*:*:*
netgear rbs860_firmware < 7.2.7.15 cpe:2.3:o:netgear:rbs860_firmware:*:*:*:*:*:*:*:*
netgear rbse950_firmware < 7.2.7.15 cpe:2.3:o:netgear:rbse950_firmware:*:*:*:*:*:*:*:*
netgear rbse960_firmware < 7.2.7.15 cpe:2.3:o:netgear:rbse960_firmware:*:*:*:*:*:*:*:*

References for CVE-2026-3088

cvelogic Threat Intelligence