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CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2023-6549

Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and Out-Of-Bounds Memory Read

CVSS 8.2 · HighBuzz score 60.0KEV listed

Buzz score

Why this CVE is surfacing

Buzz score total 60.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 22.0 · diversity 13.0 · KEV 25.0 · OTX 0.0 · PoC 0.0
Mention score
22.0
8 evidence mentions in the snapshot
Diversity score
13.0
4 sources across 2 categories
KEV score
25.0
Known exploited vulnerability present
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
8 source links · newest first
  • Network security devices endanger orgs with ’90s era flawsCSO Online

    Enterprises have long relied on firewalls, routers, VPN servers, and email gateways to protect their networks from attacks. Increasingly, however, these network edge devices are becoming security liabilities themselves. Every few weeks, another crisis plays out: Security teams scramble to patch and scan their network appliances for malware implants after another zero-day attack is newly […]

    newswww.csoonline.comOct 20, 2025, 7:00 AM
  • U.S. CISA adds Citrix NetScaler flaw to its Known Exploited Vulnerabilities catalogSecurity Affairs

    U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Citrix NetScaler vulnerability to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Citrix NetScaler vulnerability, tracked as CVE-2025-6543, to its Known Exploited Vulnerabilities (KEV) catalog. CVE-2025-6543 (CVSS score of 9.2) is a memory overflow vulnerability in NetScaler ADC and NetScaler Gateway when configured […]

    newssecurityaffairs.comJun 30, 2025, 6:49 PM
  • Top 7 zero-day exploitation trends of 2024CSO Online

    Zero-day vulnerabilities saw big growth once again in 2024. With no patch available, zero-day flaws give attackers a significant jump on cybersecurity defense teams, making them a critical weapon for attacking enterprise systems. But while all zero-days are essential for CISOs and their team to be aware of, and for vendors to remedy in a […]

    newswww.csoonline.comDec 23, 2024, 9:00 AM
  • 22nd January – Threat Intelligence ReportCheck Point Research

    For the latest discoveries in cyber research for the week of 22nd January, please download our Threat_Intelligence Bulletin. TOP ATTACKS AND BREACHES Microsoft disclosed that they detected an attack against their systems by Russian state-sponsored actor known as Midnight Blizzard (aka Nobelium). The threat actor used a password spray attack to compromise a legacy non-production test […]

    vendorresearch.checkpoint.comJan 22, 2024, 2:09 PM
  • CISA adds Chrome and Citrix NetScaler to its Known Exploited Vulnerabilities catalogSecurity Affairs

    U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Chrome and Citrix flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog. This week Citrix warned customers to install security updates to address two actively exploited zero-day vulnerabilities, tracked as CVE-2023-6548 and CVE-2023-6549, […]

    newssecurityaffairs.comJan 18, 2024, 7:07 PM
  • Citrix NetScaler devices face active zero-day exploitationsCSO Online

    Citrix has warned its NetScaler ADC and NetScaler Gateway customers against two critical zero-day vulnerabilities that have active exploitations in the wild. Tracked as CVE-2023-6548 and CVE-2023-6549, the vulnerabilities allow miscreants to perform remote code execution (RCE) and denial-of-service (DoS) attacks on the affected devices. “The vulnerabilities only apply to customer-managed NetScaler ADC and NetScaler […]

    newswww.csoonline.comJan 17, 2024, 11:58 AM
  • Citrix warns admins to immediately patch NetScaler for actively exploited zero-daysSecurity Affairs

    Citrix fixed two actively exploited zero-day vulnerabilities impacting Netscaler ADC and Gateway appliances. Citrix warns customers to install security updates to address two actively exploited zero-day vulnerabilities, tracked as CVE-2023-6548 and CVE-2023-6549, impacting Netscaler ADC and Gateway appliances. “Exploits of these CVEs on unmitigated appliances have been observed. Cloud Software Group strongly urges affected customers […]

    newssecurityaffairs.comJan 17, 2024, 11:01 AM
  • Citrix Warns NetScaler ADC Customers of New Zero-Day ExploitationSecurityWeek

    Citrix is aware of attacks exploiting two new NetScaler ADC and Gateway zero-day vulnerabilities tracked as CVE-2023-6548 and CVE-2023-6549.

    newswww.securityweek.comJan 17, 2024, 9:46 AM

Exploit code

Public exploit repository references

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0 repository references · best confidence N/A · max 0 stars
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Related records

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