CVE-2025-59969
published 2026-04-09CVE-2025-59969: A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper…
PriorityP430medium6.5CVSS 3.1
AVAACLPRNUINSUCNINAH
EPSS
0.18%
7.7th percentile
A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart. Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition.
This issue affects Junos OS Evolved PTX Series:
* All versions before 22.4R3-S8-EVO,
* from 23.2 before 23.2R2-S5-EVO,
* from 23.4 before 23.4R2-EVO,
* from 24.2 before 24.2R2-EVO,
* from 24.4 before 24.4R2-EVO.
This issue affects Junos OS Evolved on QFX5000 Series:
* 22.2-EVO version before 22.2R3-S7-EVO,
* 22.4-EVO version before 22.4R3-S7-EVO,
* 23.2-EVO versions before 23.2R2-S4-EVO,
* 23.4-EVO versions before 23.4R2-S5-EVO,
* 24.2-EVO versions before 24.2R2-S1-EVO,
* 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.
This issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO.
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| juniper | junos_os | — | — |
| juniper | junos_os_evolved | < 22.4 | 22.4 |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | qfx_series | — | — |
| juniper_networks | junos_os_evolved | < 22.4R3-S8-EVO | 22.4R3-S8-EVO |
| juniper_networks | junos_os_evolved | >= 22.2 < 22.2R3-S7-EVO | 22.2R3-S7-EVO |
| juniper_networks | junos_os_evolved | >= 22.4 < 22.4R3-S7-EVO | 22.4R3-S7-EVO |
| juniper_networks | junos_os_evolved | >= 23.2 < 23.2R2-S5-EVO | 23.2R2-S5-EVO |
| juniper_networks | junos_os_evolved | >= 23.2 < 23.2R2-S4-EVO | 23.2R2-S4-EVO |
| juniper_networks | junos_os_evolved | >= 23.4 < 23.4R2-EVO | 23.4R2-EVO |
| juniper_networks | junos_os_evolved | >= 23.4 < 23.4R2-S5-EVO | 23.4R2-S5-EVO |
| juniper_networks | junos_os_evolved | >= 24.2 < 24.2R2-EVO | 24.2R2-EVO |
| juniper_networks | junos_os_evolved | >= 24.2 < 24.2R2-S1-EVO | 24.2R2-S1-EVO |
| juniper_networks | junos_os_evolved | >= 24.4 < 24.4R2-EVO | 24.4R2-EVO |
| juniper_networks | junos_os_evolved | >= 24.4 < 24.4R1-S3-EVO, 24.4R2-EVO | 24.4R1-S3-EVO, 24.4R2-EVO |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv4.07.1HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/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:Y/R:U/V:C/RE:M/U:Amber
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GHSA
GHSA-qr7g-rj69-5948: A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of
ghsa_unreviewed·2026-04-10
CVE-2025-59969 [HIGH] CWE-120 GHSA-qr7g-rj69-5948: A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of
A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart. Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition.
This issue affects Junos OS Evolved PTX Series:
* All versions before 22.4R3-S8-EVO,
* from 23.2 before 23.2R2-S5-EVO,
* from 23.4 before 23.4R2-EVO,
* from 24.2 before 24.2R2-EVO,
* from 24.4 before 24.4R2-EVO.
This issue affec
VulDB
Juniper Junos OS Evolved on PTX evo-aftmand/evo-pfemand buffer overflow (JSA103159)
vuldb·2026-04-10·CVSS 7.1
CVE-2025-59969 [HIGH] Juniper Junos OS Evolved on PTX evo-aftmand/evo-pfemand buffer overflow (JSA103159)
A vulnerability has been found in Juniper Junos OS Evolved on PTX and classified as critical. The impacted element is an unknown function of the component evo-aftmand/evo-pfemand. This manipulation causes buffer overflow.
This vulnerability is tracked as CVE-2025-59969. The attack is only possible within the local network. No exploit exists.
The affected component should be upgraded.
Juniper
CVE-2025-59969: A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of
vendor_juniper·2026-04-09·CVSS 6.5
CVE-2025-59969 [MEDIUM] CWE-120 CVE-2025-59969: A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of
CVE-2025-59969: A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart. Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition.
This issue affects Junos OS Evolved PTX Series:
* All versions before 22.4R3-S8-EVO,
* from 23.2 before 23.2R2-S5-EVO,
* from 23.4 before 23.4R2-EVO,
* from 24.2 before 24.2R2-EVO,
* from 24.4 before 24.4R2-EVO.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-04-09
Published