DaystoPatch

N-ableExploited incident

N-able N-central insecure deserialization and command injection (CVE-2025-8875, CVE-2025-8876)

CVE-2025-8875, CVE-2025-8876Critical, CVSS 9.4In CISA's Known Exploited Vulnerabilities catalog since 13 Aug 2025

FixedFixed for every supported version on the day it became public.

Response

Silence
same day
First public report to first vendor statement
Exposure
same day
First public report to first fix
Follow-through
same day
First public report to a fix for every supported version
  • Vendor silent
  • Vendor statement, no fix
  • Fixed for some versions
  • Fixed when disclosed
  • Date only, no time of day

Timeline and evidence

Open a moment to see its source and archived quote.

  1. First public report

    date only

    N-able Status: Announcing the GA of N-central 2025.3.1 (August 13, 2025)CuratedQuote verified

    This release includes a critical security fix for CVE-2025-8875 and CVE-2025-8876. These vulnerabilities require authentication to exploit.

    First public signal; N-able withheld details ('Details of the CVEs will be published three weeks after the release'). CISA added both CVEs to KEV the same day.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:b2c6850218e4eb5d…
    Used in metrics
    Yes
    Dispute this timestamp
    6 more sources for this moment
    CISA KEV (CVE-2025-8875)ClaimedQuote verified13 Aug 2025

    N-able N-Central Insecure Deserialization Vulnerability

    Added to CISA's KEV catalog on 2025-08-13.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:ef8fffede5c47200…
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    CISA KEV (CVE-2025-8876)ClaimedQuote verified13 Aug 2025

    N-able N-Central Command Injection Vulnerability

    Added to CISA's KEV catalog on 2025-08-13.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:ef8fffede5c47200…
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    Bluesky postClaimedQuote not checked yet13 Aug 2025, 20:00 UTC

    CVE-2025-8876

    Earliest third-party post we hold.

    Source
    Bluesky post social
    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Not checked yet
    Snapshot
    No archived snapshot
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    Help Net Security (Zeljka Zorz, August 14, 2025)CuratedQuote verified14 Aug 2025

    There are no public reports of exploitation, but the confirmation came from the US Cybersecurity and Infrastructure Security Agency (CISA), which added the flaws to its Known Exploited Vulnerabilities catalog

    Article's update of August 14, 2025 10:10 a.m. ET quotes N-able confirming exploitation against a limited number of customers.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:7fe49d2166cf6ddc…
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    CVE.org record CVE-2025-8876ClaimedQuote verified14 Aug 2025, 14:53 UTC

    Improper Input Validation vulnerability in N-able N-central allows OS Command Injection.This issue affects N-central: before 2025.3.1.

    CVE record published.

    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:a3a6d8936fb3e040…
    Used in metrics
    No, kept for the record
    Dispute this timestamp
    Mastodon postClaimedQuote not checked yet20 Aug 2025, 19:22 UTC

    CVE Alert: CVE-2025-8875 - https://www. redpacketsecurity.com/cve_aler t-cve-2025-8875/ # OSINT # ThreatIntel # CyberSecurity # cve_2025_8875

    Earliest third-party post we hold.

    Source
    Mastodon post social
    Recorded time
    Precision
    To the minute
    Origin
    Claimed. The date the source gives.
    Quote check
    Not checked yet
    Snapshot
    No archived snapshot
    Used in metrics
    No, kept for the record
    Dispute this timestamp

  2. Vendor statement

    date onlysame day

    N-able Status: Announcing the GA of N-central 2025.3.1 (August 13, 2025)CuratedQuote verified

    Posted on August 13, 2025 by annemayekar

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:b2c6850218e4eb5d…
    Used in metrics
    Yes
    Dispute this timestamp

  3. First workaround

    No official mitigation found yet.

  4. First fix

    date onlysame day

    N-able Status: Announcing the GA of N-central 2025.3.1 (August 13, 2025)CuratedQuote verified

    You must upgrade your on-premises N-central to 2025.3.1.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:b2c6850218e4eb5d…
    Used in metrics
    Yes
    Dispute this timestamp

  5. Fixed for all versions

    date onlysame day

    N-able Status: N-central 2024.6 HF2 (August 13, 2025)CuratedQuote verified

    (2024.6.2.5), which includes critical security fixes for CVE-2025-8875 and CVE-2025-8876.

    Posted on August 13, 2025, the same day as 2025.3.1, covering the older 2024.6 branch.

    Recorded time
    Precision
    Date only (no time of day is shown)
    Origin
    Curated. Found by a researcher, with a verbatim quote and link.
    Quote check
    Found in the archived copy
    Snapshot
    sha256:ff994fccfc8a917b…
    Used in metrics
    Yes
    Dispute this timestamp

Send this to your boss

No brief for this incident yet. We write one for every open incident and every critical bug exploited before a fix.

Affected products

  • N-able N-central (on-premises) before 2025.3.1 / 2024.6 HF2
How we built this timeline

Grouped: both CVEs fixed in the same releases and listed in KEV together. Primary CVE is CVE-2025-8875 (listed first by N-able; both have N-able's CNA CVSS 4.0 score 9.4;

NVD v3.1 scores 7.8 and 8.8). exploited before a fix stays null under R4 (sources conflict, and the fix and KEV listing fall on the same day with no times available): CISA listed both as exploited on the release day and N-able later confirmed exploitation against a limited number of customers (per Help Net Security and SecurityWeek), but no source says whether exploitation started before the fix; the bugs need authentication. N-able said it saw no exploitation in its hosted cloud environments.

Related

No related incidents.

N-able report card