CVE-2026-49457Disclosure

MEDIUM

Exploitation ongoing with high activity in latest observed window (1 mentions)

Immediate actions

Patch affected systems immediately
Assume compromise if assets are exposed

Recommended action window: Immediate (within 24h)

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4.0/ 10 priority

Priority

MEDIUM

Exploitation

ACTIVE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

Active exploitation appears in 1 classified signals
Patch or workaround signal is available
5 mentions across 5 observed days
Momentum state: stable

What's happening

Active exploitation reported across 1 signal
Patch or workaround mentioned in 1 signal
Technical details provided in 4 signals
Disclosure: 2 classified signals
General: 2 classified signals
Peaked 4d ago at 1 mentions (2026-07-01); latest day: 1
5 total mentions across 5 days

Deep dive

Activity timeline5 mentions / 5d

Signal classification3 categories

Disclosure

240.0%

General

240.0%

Active Exploitation

120.0%

Referenced assets2 URLs

By indicator

Classification over time

Date	Total	Labels

2026-07-01	1	Disclosure1
2026-07-08	1	Disclosure1
2026-07-23	1	General1
2026-08-10	1	Active Exploitation1
2026-08-14	1	General1

Full discourse5 posts

Vulmon Vulnerability Feed@VulmonFeeds47d
General
CVE-2026-49457 erlang_quic Client TLS 1.3 Handshake Vulnerability Allows Server Impersonation https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-49457
Post summary
The text references CVE‑2026‑49457, noting a TLS 1.3 handshake vulnerability in erlang_quic that allows server impersonation, without providing exploits, patches, or evidence of active use.
00000120
4.1K followersView on X
𝔸𝕟𝕠𝕟𝕪𝕞𝕠𝕦𝕤 ℍ𝕒𝕔𝕜𝕥𝕚𝕧𝕚𝕤𝕥☭⃠🅇@YourAnon_irc52d
Active Exploitation
Critical zero-days in N-able (CVE-2026-18577) & Cisco FMC (CVE-2026-20316) are under active exploitation, risking network integrity. A QUIC TLS bypass (CVE-2026-49457) also enables MiTM, compromising data privacy in transit. #Cybersecurity #ZeroDay #Infosec
Post summary
Multiple CVEs—CVE-2026-18577, CVE-2026-20316, and CVE-2026-49457—are reported as actively exploited or capable of MITM attacks, posing significant network integrity and data privacy risks.
0000091
17 followersView on X
𝔸𝕟𝕠𝕟𝕪𝕞𝕠𝕦𝕤 ℍ𝕒𝕔𝕜𝕥𝕚𝕧𝕚𝕤𝕥☭⃠🅇@YourAnon_irc69d
General
Recent zero-days: Check Point auth bypass (CVE-2026-16232) & QUIC TLS flaw (CVE-2026-49457) threaten data integrity/privacy. DNS-over-TLS/QUIC also vulnerable. Update defenses! #Cybersecurity #InfoSec #ZeroDay
Post summary
The tweet notes two new zero-day vulnerabilities (CVE-2026-16232 and CVE-2026-49457) that could compromise data integrity and privacy, urging general defensive action but lacking detailed technical or remediation information.
0000058
16 followersView on X
𝔸𝕟𝕠𝕟𝕪𝕞𝕠𝕦𝕤 ℍ𝕒𝕔𝕜𝕥𝕚𝕧𝕚𝕤𝕥☭⃠🅇@YourAnon_irc84d
Disclosure
New Ubiquiti UniFi RCE/privilege escalation (July 8) & Google Gemini Live API RCE (July 7) expose critical comms & data. QUIC TLS flaws (CVE-2026-49457) enable MiTM, jeopardizing privacy/integrity. Patch now! #Cybersecurity #Vulnerabilities #RealTimeComms
Post summary
The post announces newly discovered RCE and MiTM vulnerabilities in Ubiquiti UniFi, Google Gemini Live API, and QUIC TLS, stressing their critical impact and urging immediate patching.
0000076
14 followersView on X
DailyCVE@dailycve91d
Disclosure
🔴 erlang/quic, TLS Certificate Verification Bypass, #CVE-2026-49457 (Critical) -DC-Jul2026-803 https://dailycve.com/erlang-quic-tls-certificate-verification-bypass-cve-2026-49457-critical-dc-jul2026-803/
Post summary
The tweet announces a new critical TLS certificate verification bypass in erlang/quic (CVE-2026-49457) and directs readers to a dailycve article for details.
0000057
217 followersView on X

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What researchers are saying

CVE-2026-49457

Vulmon Vulnerability Feed@VulmonFeedsGeneral

The text references CVE‑2026‑49457, noting a TLS 1.3 handshake vulnerability in erlang_quic that allows server impersonation, without providing exploits, patches, or evidence of active use.

𝔸𝕟𝕠𝕟𝕪𝕞𝕠𝕦𝕤 ℍ𝕒𝕔𝕜𝕥𝕚𝕧𝕚𝕤𝕥☭⃠🅇@YourAnon_ircActive Exploitation

Multiple CVEs—CVE-2026-18577, CVE-2026-20316, and CVE-2026-49457—are reported as actively exploited or capable of MITM attacks, posing significant network integrity and data privacy risks.

𝔸𝕟𝕠𝕟𝕪𝕞𝕠𝕦𝕤 ℍ𝕒𝕔𝕜𝕥𝕚𝕧𝕚𝕤𝕥☭⃠🅇@YourAnon_ircGeneral

The tweet notes two new zero-day vulnerabilities (CVE-2026-16232 and CVE-2026-49457) that could compromise data integrity and privacy, urging general defensive action but lacking detailed technical or remediation information.

𝔸𝕟𝕠𝕟𝕪𝕞𝕠𝕦𝕤 ℍ𝕒𝕔𝕜𝕥𝕚𝕧𝕚𝕤𝕥☭⃠🅇@YourAnon_ircDisclosure

The post announces newly discovered RCE and MiTM vulnerabilities in Ubiquiti UniFi, Google Gemini Live API, and QUIC TLS, stressing their critical impact and urging immediate patching.

DailyCVE@dailycveDisclosure

The tweet announces a new critical TLS certificate verification bypass in erlang/quic (CVE-2026-49457) and directs readers to a dailycve article for details.