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Zyxel product

GS1900-48HPv2 firmware

Alert
No GS1900-48HPv2 firmware CVE is in the CISA KEV catalogue.

Tracked since 18 Jun · latest article 22 Sep · RSS · API

0Open KEV deadlines

None open

0Added to KEV · 90 days

of 0 in the full CISA catalogue · all time

0High exploit odds · current

EPSS top 5%, not in KEV

0Articles · 7 days

none this week

Exploited, by due date

No GS1900-48HPv2 firmware CVE is in the CISA KEV catalogue.

Patch cadence and exploit odds

How often CISA adds GS1900-48HPv2 firmware CVEs, how many have a fix, and where their exploit odds sit.

Added to CISA KEV per quarter

CISA has not added a GS1900-48HPv2 firmware CVE to KEV.

Fix listed

1 of 1 CVE in coverage

Every CVE in coverage has a fix recorded.

EPSS percentile of each CVE

One dot per CVE; a red diamond marks those in CISA KEV.

top 5%CVE-2026-7273: 86.4th percentile, in CISA KEV050100
Show as table
FIRST EPSS percentiles across CVEs in coverage
CVEEPSS percentile
CVE-2026-727386.4

Coverage6 articles · all time

The latest 6 articles naming GS1900-48HPv2 firmware, in the shared story grammar.

Full timeline
Quiet for 6 weekslast report 22 Sep6 articles4 outlets

6 articles from 4 outlets since 18 Jun. Quiet since 22 Sep.

Now18 Jun1921 Sep232431 OctFirst reportSecurityOnline · 18 Jun, 02:31CISA alert21 Sep, 20:01 · official
  • Thu 18 Jun, 02:31 UTC. SecurityOnline, first report. Zyxel fixes CVE-2026-7273 buffer overflow in GS1900 switches. Cites a CVE in CISA KEV.
  • Mon 21 Sep, 20:01 UTC. CISA, its first report on the story. CISA Warns of Active Zyxel Switch Attacks via Command Flaw. Cites a CVE in CISA KEV.
  • Tue 22 Sep, 04:23 UTC. SecurityOnline. Suspected Chinese Actor Exposed 18,566 Government Records in Campaign. Cites a CVE in CISA KEV.
  • Tue 22 Sep, 04:23 UTC. SecurityOnline. US Authorities Warn of Zyxel Switch Flaw Exploited in Attacks. Cites a CVE in CISA KEV.
  • Tue 22 Sep, 10:36 UTC. Security Affairs, its first report on the story. CISA Flags Zyxel Switch Flaw Exploited in Network Attacks. Cites a CVE in CISA KEV.
  • Tue 22 Sep, 12:22 UTC. SecurityWeek, its first report on the story. Chinese Hackers Exploit Zyxel Switch Flaw to Steal Credentials. Cites a CVE in CISA KEV.
  • Known exploited CVE
  • No CVE
  • Larger: an outlet’s first report
  • Square: official source
  • Coverage over time
  • Quiet time, folded
Show all 6 articles as a list
  1. Thu 18 JunDay 01
    1. Zyxel fixes CVE-2026-7273 buffer overflow in GS1900 switches02:31 · SecurityOnline · First report · Exploited CVE · Known exploited CVE

  2. Quiet for 14 weeks

    Mon 21 SepDay 951
    1. CISA Warns of Active Zyxel Switch Attacks via Command Flaw20:01 · CISA · official · CISA alert · Picked up again · Known exploited CVE
  3. Tue 22 SepDay 964
    1. Suspected Chinese Actor Exposed 18,566 Government Records in Campaign04:23 · SecurityOnline · Known exploited CVE
    2. US Authorities Warn of Zyxel Switch Flaw Exploited in Attacks04:23 · SecurityOnline · Known exploited CVE
    3. CISA Flags Zyxel Switch Flaw Exploited in Network Attacks10:36 · Security Affairs · Known exploited CVE
    4. Chinese Hackers Exploit Zyxel Switch Flaw to Steal Credentials12:22 · SecurityWeek · Known exploited CVE

All CVEs in coverage1

Exploited first, then by EPSS

In the CVE tracker
  • CVE-2026-7273Exploited

    Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability

    8.8High2.8% EPSS · 6 articles
CyberSIXTSignal over noise
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